EESchema Schematic File Version 4
LIBS:ttlclock-cache
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "TTL binary clock"
Date "2019-08-17"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	2800 1600 2800 2000
$Comp
L 74xx:74LS20 U4
U 2 1 5CCCD522
P 2500 3150
F 0 "U4" H 2500 3250 50  0000 C CNN
F 1 "7420" H 2500 3150 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 2500 3150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS20" H 2500 3150 50  0001 C CNN
	2    2500 3150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR028
U 1 1 5CD07CD5
P 1600 3650
F 0 "#PWR028" H 1600 3400 50  0001 C CNN
F 1 "GND" H 1605 3477 50  0000 C CNN
F 2 "" H 1600 3650 50  0001 C CNN
F 3 "" H 1600 3650 50  0001 C CNN
	1    1600 3650
	-1   0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG02
U 1 1 5CD0906A
P 9900 3450
F 0 "#FLG02" H 9900 3525 50  0001 C CNN
F 1 "PWR_FLAG" V 9900 3578 50  0000 L CNN
F 2 "" H 9900 3450 50  0001 C CNN
F 3 "~" H 9900 3450 50  0001 C CNN
	1    9900 3450
	0    1    1    0   
$EndComp
$Comp
L power:PWR_FLAG #FLG01
U 1 1 5CD0923C
P 9900 1100
F 0 "#FLG01" H 9900 1175 50  0001 C CNN
F 1 "PWR_FLAG" V 9900 1228 50  0000 L CNN
F 2 "" H 9900 1100 50  0001 C CNN
F 3 "~" H 9900 1100 50  0001 C CNN
	1    9900 1100
	0    1    -1   0   
$EndComp
$Comp
L 74xx:74LS20 U4
U 3 1 5CD0B9FB
P 1600 3150
F 0 "U4" H 1830 3196 50  0000 L CNN
F 1 "7420" H 1830 3105 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 1600 3150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS20" H 1600 3150 50  0001 C CNN
	3    1600 3150
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR013
U 1 1 5CD0C2CE
P 1600 2650
F 0 "#PWR013" H 1600 2500 50  0001 C CNN
F 1 "+5V" H 1615 2823 50  0000 C CNN
F 2 "" H 1600 2650 50  0001 C CNN
F 3 "" H 1600 2650 50  0001 C CNN
	1    1600 2650
	1    0    0    -1  
$EndComp
$Comp
L 74xx_IEEE:7490 U9
U 1 1 5CD2CEDD
P 5250 4850
F 0 "U9" H 5350 5600 50  0000 C CNN
F 1 "7490" H 5350 5400 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 5250 4850 50  0001 C CNN
F 3 "" H 5250 4850 50  0001 C CNN
	1    5250 4850
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR035
U 1 1 5CDFD200
P 4700 4400
F 0 "#PWR035" H 4700 4150 50  0001 C CNN
F 1 "GND" H 4705 4227 50  0000 C CNN
F 2 "" H 4700 4400 50  0001 C CNN
F 3 "" H 4700 4400 50  0001 C CNN
	1    4700 4400
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR036
U 1 1 5CDFD327
P 6050 4400
F 0 "#PWR036" H 6050 4150 50  0001 C CNN
F 1 "GND" H 6055 4227 50  0000 C CNN
F 2 "" H 6050 4400 50  0001 C CNN
F 3 "" H 6050 4400 50  0001 C CNN
	1    6050 4400
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4700 4100 4700 4200
Wire Wire Line
	4700 4300 4700 4400
$Comp
L power:+5V #PWR033
U 1 1 5CE741C7
P 6650 4000
F 0 "#PWR033" H 6650 3850 50  0001 C CNN
F 1 "+5V" H 6665 4173 50  0000 C CNN
F 2 "" H 6650 4000 50  0001 C CNN
F 3 "" H 6650 4000 50  0001 C CNN
	1    6650 4000
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR031
U 1 1 5CE74413
P 5300 4000
F 0 "#PWR031" H 5300 3850 50  0001 C CNN
F 1 "+5V" H 5315 4173 50  0000 C CNN
F 2 "" H 5300 4000 50  0001 C CNN
F 3 "" H 5300 4000 50  0001 C CNN
	1    5300 4000
	-1   0    0    -1  
$EndComp
NoConn ~ 5800 4650
NoConn ~ 5800 4750
NoConn ~ 7150 4650
$Comp
L power:GND #PWR034
U 1 1 5CEED50B
P 6800 4000
F 0 "#PWR034" H 6800 3750 50  0001 C CNN
F 1 "GND" H 6805 3827 50  0000 C CNN
F 2 "" H 6800 4000 50  0001 C CNN
F 3 "" H 6800 4000 50  0001 C CNN
	1    6800 4000
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR032
U 1 1 5CEED6AA
P 5450 4000
F 0 "#PWR032" H 5450 3750 50  0001 C CNN
F 1 "GND" H 5455 3827 50  0000 C CNN
F 2 "" H 5450 4000 50  0001 C CNN
F 3 "" H 5450 4000 50  0001 C CNN
	1    5450 4000
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR042
U 1 1 5D021725
P 5700 5900
F 0 "#PWR042" H 5700 5650 50  0001 C CNN
F 1 "GND" H 5705 5727 50  0000 C CNN
F 2 "" H 5700 5900 50  0001 C CNN
F 3 "" H 5700 5900 50  0001 C CNN
	1    5700 5900
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR043
U 1 1 5D021865
P 7750 5900
F 0 "#PWR043" H 7750 5650 50  0001 C CNN
F 1 "GND" H 7755 5727 50  0000 C CNN
F 2 "" H 7750 5900 50  0001 C CNN
F 3 "" H 7750 5900 50  0001 C CNN
	1    7750 5900
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR040
U 1 1 5D022411
P 5700 5400
F 0 "#PWR040" H 5700 5250 50  0001 C CNN
F 1 "+5V" H 5715 5573 50  0000 C CNN
F 2 "" H 5700 5400 50  0001 C CNN
F 3 "" H 5700 5400 50  0001 C CNN
	1    5700 5400
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR041
U 1 1 5D0225CC
P 7750 5400
F 0 "#PWR041" H 7750 5250 50  0001 C CNN
F 1 "+5V" H 7765 5573 50  0000 C CNN
F 2 "" H 7750 5400 50  0001 C CNN
F 3 "" H 7750 5400 50  0001 C CNN
	1    7750 5400
	-1   0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U11
U 2 1 5D03751C
P 6950 5600
F 0 "U11" H 6950 5917 50  0000 C CNN
F 1 "7414" H 6950 5826 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 6950 5600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 6950 5600 50  0001 C CNN
	2    6950 5600
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U11
U 3 1 5D037FFA
P 4900 5600
F 0 "U11" H 4900 5917 50  0000 C CNN
F 1 "7414" H 4900 5826 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 4900 5600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 4900 5600 50  0001 C CNN
	3    4900 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	6650 5600 6650 5700
$Comp
L 74xx:74LS14 U11
U 5 1 5D06F9A1
P 4300 6500
F 0 "U11" H 4300 6817 50  0000 C CNN
F 1 "7414" H 4300 6726 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 4300 6500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 4300 6500 50  0001 C CNN
	5    4300 6500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR046
U 1 1 5D0CD721
P 9100 6150
F 0 "#PWR046" H 9100 5900 50  0001 C CNN
F 1 "GND" H 9105 5977 50  0000 C CNN
F 2 "" H 9100 6150 50  0001 C CNN
F 3 "" H 9100 6150 50  0001 C CNN
	1    9100 6150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR038
U 1 1 5D0CDF60
P 9100 5150
F 0 "#PWR038" H 9100 5000 50  0001 C CNN
F 1 "+5V" H 9115 5323 50  0000 C CNN
F 2 "" H 9100 5150 50  0001 C CNN
F 3 "" H 9100 5150 50  0001 C CNN
	1    9100 5150
	-1   0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U11
U 7 1 5D0CC587
P 9100 5650
F 0 "U11" H 9050 5700 50  0000 L CNN
F 1 "7414" H 9000 5600 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9100 5650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 9100 5650 50  0001 C CNN
	7    9100 5650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6650 5700 6650 6500
Connection ~ 6650 5700
$Comp
L Device:R_Small R17
U 1 1 5CC04DBE
P 5550 6400
F 0 "R17" H 5492 6354 50  0000 R CNN
F 1 "47k" H 5492 6445 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 5550 6400 50  0001 C CNN
F 3 "~" H 5550 6400 50  0001 C CNN
	1    5550 6400
	1    0    0    1   
$EndComp
$Comp
L Device:R_Small R16
U 1 1 5CC16988
P 4000 6400
F 0 "R16" H 3942 6354 50  0000 R CNN
F 1 "47k" H 3942 6445 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 4000 6400 50  0001 C CNN
F 3 "~" H 4000 6400 50  0001 C CNN
	1    4000 6400
	1    0    0    1   
$EndComp
$Comp
L Device:C_Small C5
U 1 1 5CC1787C
P 5550 6600
F 0 "C5" H 5458 6554 50  0000 R CNN
F 1 "0.1u" H 5458 6645 50  0000 R CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 5550 6600 50  0001 C CNN
F 3 "~" H 5550 6600 50  0001 C CNN
	1    5550 6600
	1    0    0    1   
$EndComp
Connection ~ 5550 6500
$Comp
L Device:C_Small C4
U 1 1 5CC17A9C
P 4000 6600
F 0 "C4" H 3908 6554 50  0000 R CNN
F 1 "0.1u" H 3908 6645 50  0000 R CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 4000 6600 50  0001 C CNN
F 3 "~" H 4000 6600 50  0001 C CNN
	1    4000 6600
	1    0    0    1   
$EndComp
Connection ~ 4000 6500
$Comp
L power:GND #PWR049
U 1 1 5CC17D1E
P 4000 6700
F 0 "#PWR049" H 4000 6450 50  0001 C CNN
F 1 "GND" H 4005 6527 50  0000 C CNN
F 2 "" H 4000 6700 50  0001 C CNN
F 3 "" H 4000 6700 50  0001 C CNN
	1    4000 6700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR050
U 1 1 5CC17EB7
P 5550 6700
F 0 "#PWR050" H 5550 6450 50  0001 C CNN
F 1 "GND" H 5555 6527 50  0000 C CNN
F 2 "" H 5550 6700 50  0001 C CNN
F 3 "" H 5550 6700 50  0001 C CNN
	1    5550 6700
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR048
U 1 1 5CC18040
P 5550 6300
F 0 "#PWR048" H 5550 6150 50  0001 C CNN
F 1 "+5V" H 5565 6473 50  0000 C CNN
F 2 "" H 5550 6300 50  0001 C CNN
F 3 "" H 5550 6300 50  0001 C CNN
	1    5550 6300
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR047
U 1 1 5CC1821F
P 4000 6300
F 0 "#PWR047" H 4000 6150 50  0001 C CNN
F 1 "+5V" H 4015 6473 50  0000 C CNN
F 2 "" H 4000 6300 50  0001 C CNN
F 3 "" H 4000 6300 50  0001 C CNN
	1    4000 6300
	1    0    0    -1  
$EndComp
Wire Wire Line
	6050 4300 6050 4400
Wire Wire Line
	6250 5650 6200 5650
$Comp
L Device:LED D12
U 1 1 5CD4F250
P 5850 4300
F 0 "D12" V 5889 4182 50  0000 R CNN
F 1 "LED" V 5798 4182 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 5850 4300 50  0001 C CNN
F 3 "~" H 5850 4300 50  0001 C CNN
	1    5850 4300
	0    1    -1   0   
$EndComp
$Comp
L Device:R R12
U 1 1 5CD4F256
P 5850 4000
F 0 "R12" H 5920 4046 50  0000 L CNN
F 1 "R" H 5920 3955 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5780 4000 50  0001 C CNN
F 3 "~" H 5850 4000 50  0001 C CNN
	1    5850 4000
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR029
U 1 1 5CD4F25D
P 5850 3850
F 0 "#PWR029" H 5850 3700 50  0001 C CNN
F 1 "+5V" H 5865 4023 50  0000 C CNN
F 2 "" H 5850 3850 50  0001 C CNN
F 3 "" H 5850 3850 50  0001 C CNN
	1    5850 3850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7250 5700 6650 5700
Wire Wire Line
	4600 5600 4600 5700
Wire Wire Line
	5200 5700 4600 5700
$Comp
L Ken:7450 U12
U 1 1 5CBEFB1C
P 5700 5650
F 0 "U12" H 5750 5850 50  0000 C CNN
F 1 "7450" H 5750 5550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 5700 5650 50  0001 C CNN
F 3 "" H 5700 5650 50  0001 C CNN
	1    5700 5650
	1    0    0    -1  
$EndComp
NoConn ~ 5550 6000
Text Notes 3250 6500 0    50   ~ 0
Slow
Text Notes 4800 6500 0    50   ~ 0
Fast
Wire Wire Line
	8450 5650 8250 5650
Text Notes 2000 6500 0    50   ~ 0
Hold
Text Label 2800 6500 0    50   ~ 0
HOLD
$Comp
L 74xx:74LS14 U11
U 6 1 5CD276CA
P 2500 6500
F 0 "U11" H 2500 6817 50  0000 C CNN
F 1 "7414" H 2500 6726 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 2500 6500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2500 6500 50  0001 C CNN
	6    2500 6500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U11
U 4 1 5D06E70E
P 5850 6500
F 0 "U11" H 5850 6817 50  0000 C CNN
F 1 "7414" H 5850 6726 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 5850 6500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 5850 6500 50  0001 C CNN
	4    5850 6500
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 1450 2200 1550
Wire Wire Line
	2200 1650 2200 1750
Wire Notes Line
	1250 2100 8750 2100
Text Notes 1300 2050 0    50   ~ 0
Hours counters
Text Notes 1300 3600 0    50   ~ 0
Minutes counters
Text Notes 2400 6050 0    50   ~ 0
Timebase generator
Text Notes 3250 5200 0    50   ~ 0
Frequency selectors
Connection ~ 4700 4400
$Comp
L 74xx:74LS74 U1
U 3 1 5CE386F2
P 9000 1500
F 0 "U1" H 8950 1550 50  0000 L CNN
F 1 "7474" H 8900 1450 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9000 1500 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9000 1500 50  0001 C CNN
	3    9000 1500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U2
U 3 1 5CE38B0A
P 9450 1500
F 0 "U2" H 9400 1550 50  0000 L CNN
F 1 "7474" H 9350 1450 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9450 1500 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9450 1500 50  0001 C CNN
	3    9450 1500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U3
U 3 1 5CE38E17
P 9900 1500
F 0 "U3" H 9850 1550 50  0000 L CNN
F 1 "7474" H 9800 1450 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9900 1500 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9900 1500 50  0001 C CNN
	3    9900 1500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U6
U 3 1 5CE3D920
P 9450 3050
F 0 "U6" H 9400 3100 50  0000 L CNN
F 1 "7474" H 9350 3000 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9450 3050 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9450 3050 50  0001 C CNN
	3    9450 3050
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U7
U 3 1 5CE3B50C
P 9900 3050
F 0 "U7" H 9850 3100 50  0000 L CNN
F 1 "7474" H 9800 3000 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9900 3050 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9900 3050 50  0001 C CNN
	3    9900 3050
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U5
U 3 1 5CE40BD8
P 9000 3050
F 0 "U5" H 8950 3100 50  0000 L CNN
F 1 "7474" H 8900 3000 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 9000 3050 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 9000 3050 50  0001 C CNN
	3    9000 3050
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR011
U 1 1 5CE2A608
P 7900 1300
F 0 "#PWR011" H 7900 1150 50  0001 C CNN
F 1 "+5V" H 7915 1473 50  0000 C CNN
F 2 "" H 7900 1300 50  0001 C CNN
F 3 "" H 7900 1300 50  0001 C CNN
	1    7900 1300
	-1   0    0    -1  
$EndComp
Connection ~ 7500 1700
$Comp
L Device:LED D5
U 1 1 5CE23342
P 7500 1550
F 0 "D5" V 7700 1500 50  0000 R CNN
F 1 "LED" V 7600 1500 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 7500 1550 50  0001 C CNN
F 3 "~" H 7500 1550 50  0001 C CNN
	1    7500 1550
	0    1    -1   0   
$EndComp
Wire Wire Line
	7600 1700 7500 1700
Wire Wire Line
	8250 1500 8200 1500
Wire Wire Line
	8250 1500 8250 1950
Wire Wire Line
	7500 1950 8250 1950
Wire Wire Line
	7500 1700 7500 1950
$Comp
L 74xx:74LS74 U3
U 2 1 5CE32FE4
P 7900 1600
F 0 "U3" H 7900 1650 50  0000 C CNN
F 1 "7474" H 7900 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 7900 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 7900 1600 50  0001 C CNN
	2    7900 1600
	-1   0    0    -1  
$EndComp
Wire Notes Line
	8750 550  1250 550 
$Comp
L power:+5V #PWR010
U 1 1 5CE3F881
P 7050 1300
F 0 "#PWR010" H 7050 1150 50  0001 C CNN
F 1 "+5V" H 7065 1473 50  0000 C CNN
F 2 "" H 7050 1300 50  0001 C CNN
F 3 "" H 7050 1300 50  0001 C CNN
	1    7050 1300
	-1   0    0    -1  
$EndComp
Connection ~ 6650 1700
$Comp
L Device:LED D4
U 1 1 5CE3F897
P 6650 1550
F 0 "D4" V 6850 1500 50  0000 R CNN
F 1 "LED" V 6750 1500 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 6650 1550 50  0001 C CNN
F 3 "~" H 6650 1550 50  0001 C CNN
	1    6650 1550
	0    1    -1   0   
$EndComp
Wire Wire Line
	6750 1700 6650 1700
Wire Wire Line
	6650 1700 6650 1950
$Comp
L 74xx:74LS74 U3
U 1 1 5CE3F8A2
P 7050 1600
F 0 "U3" H 7050 1650 50  0000 C CNN
F 1 "7474" H 7050 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 7050 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 7050 1600 50  0001 C CNN
	1    7050 1600
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR09
U 1 1 5CE41F27
P 6150 1300
F 0 "#PWR09" H 6150 1150 50  0001 C CNN
F 1 "+5V" H 6165 1473 50  0000 C CNN
F 2 "" H 6150 1300 50  0001 C CNN
F 3 "" H 6150 1300 50  0001 C CNN
	1    6150 1300
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR026
U 1 1 5CE4C4AC
P 7900 2850
F 0 "#PWR026" H 7900 2700 50  0001 C CNN
F 1 "+5V" H 7915 3023 50  0000 C CNN
F 2 "" H 7900 2850 50  0001 C CNN
F 3 "" H 7900 2850 50  0001 C CNN
	1    7900 2850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7350 3250 7350 3150
Connection ~ 7500 3250
$Comp
L Device:LED D11
U 1 1 5CE4C4C2
P 7500 3100
F 0 "D11" V 7700 3050 50  0000 R CNN
F 1 "LED" V 7600 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 7500 3100 50  0001 C CNN
F 3 "~" H 7500 3100 50  0001 C CNN
	1    7500 3100
	0    1    -1   0   
$EndComp
Wire Wire Line
	7600 3250 7500 3250
Wire Wire Line
	8250 3050 8200 3050
Wire Wire Line
	8250 3050 8250 3500
Wire Wire Line
	7500 3500 8250 3500
Wire Wire Line
	7500 3250 7500 3500
$Comp
L 74xx:74LS74 U7
U 2 1 5CE4C4CD
P 7900 3150
F 0 "U7" H 7900 3200 50  0000 C CNN
F 1 "7474" H 7900 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 7900 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 7900 3150 50  0001 C CNN
	2    7900 3150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR025
U 1 1 5CE50780
P 7050 2850
F 0 "#PWR025" H 7050 2700 50  0001 C CNN
F 1 "+5V" H 7065 3023 50  0000 C CNN
F 2 "" H 7050 2850 50  0001 C CNN
F 3 "" H 7050 2850 50  0001 C CNN
	1    7050 2850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6450 3250 6450 3150
Connection ~ 6650 3250
$Comp
L Device:LED D10
U 1 1 5CE50796
P 6650 3100
F 0 "D10" V 6850 3050 50  0000 R CNN
F 1 "LED" V 6750 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 6650 3100 50  0001 C CNN
F 3 "~" H 6650 3100 50  0001 C CNN
	1    6650 3100
	0    1    -1   0   
$EndComp
Wire Wire Line
	6750 3250 6650 3250
Wire Wire Line
	7400 3050 7350 3050
Wire Wire Line
	7400 3050 7400 3500
Wire Wire Line
	6650 3500 7400 3500
Wire Wire Line
	6650 3250 6650 3500
$Comp
L 74xx:74LS74 U7
U 1 1 5CE507A1
P 7050 3150
F 0 "U7" H 7050 3200 50  0000 C CNN
F 1 "7474" H 7050 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 7050 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 7050 3150 50  0001 C CNN
	1    7050 3150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR024
U 1 1 5CE556D8
P 6150 2850
F 0 "#PWR024" H 6150 2700 50  0001 C CNN
F 1 "+5V" H 6165 3023 50  0000 C CNN
F 2 "" H 6150 2850 50  0001 C CNN
F 3 "" H 6150 2850 50  0001 C CNN
	1    6150 2850
	-1   0    0    -1  
$EndComp
$Comp
L Device:LED D9
U 1 1 5CE556EE
P 5750 3100
F 0 "D9" V 5950 3050 50  0000 R CNN
F 1 "LED" V 5850 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 5750 3100 50  0001 C CNN
F 3 "~" H 5750 3100 50  0001 C CNN
	1    5750 3100
	0    1    -1   0   
$EndComp
$Comp
L 74xx:74LS74 U6
U 2 1 5CE556F9
P 6150 3150
F 0 "U6" H 6150 3200 50  0000 C CNN
F 1 "7474" H 6150 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 6150 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 6150 3150 50  0001 C CNN
	2    6150 3150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR023
U 1 1 5CE5A85A
P 5250 2850
F 0 "#PWR023" H 5250 2700 50  0001 C CNN
F 1 "+5V" H 5265 3023 50  0000 C CNN
F 2 "" H 5250 2850 50  0001 C CNN
F 3 "" H 5250 2850 50  0001 C CNN
	1    5250 2850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4650 3250 4650 3150
Connection ~ 4850 3250
$Comp
L Device:LED D8
U 1 1 5CE5A870
P 4850 3100
F 0 "D8" V 5050 3050 50  0000 R CNN
F 1 "LED" V 4950 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 4850 3100 50  0001 C CNN
F 3 "~" H 4850 3100 50  0001 C CNN
	1    4850 3100
	0    1    -1   0   
$EndComp
Wire Wire Line
	4950 3250 4850 3250
Wire Wire Line
	5600 3050 5550 3050
Wire Wire Line
	4850 3250 4850 3500
$Comp
L 74xx:74LS74 U6
U 1 1 5CE5A87B
P 5250 3150
F 0 "U6" H 5250 3200 50  0000 C CNN
F 1 "7474" H 5250 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 5250 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 5250 3150 50  0001 C CNN
	1    5250 3150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR022
U 1 1 5CE605F8
P 4350 2850
F 0 "#PWR022" H 4350 2700 50  0001 C CNN
F 1 "+5V" H 4365 3023 50  0000 C CNN
F 2 "" H 4350 2850 50  0001 C CNN
F 3 "" H 4350 2850 50  0001 C CNN
	1    4350 2850
	-1   0    0    -1  
$EndComp
Connection ~ 3950 3250
$Comp
L Device:LED D7
U 1 1 5CE6060E
P 3950 3100
F 0 "D7" V 4150 3050 50  0000 R CNN
F 1 "LED" V 4050 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 3950 3100 50  0001 C CNN
F 3 "~" H 3950 3100 50  0001 C CNN
	1    3950 3100
	0    1    -1   0   
$EndComp
Wire Wire Line
	4050 3250 3950 3250
Wire Wire Line
	4700 3050 4650 3050
Wire Wire Line
	3950 3500 4700 3500
Wire Wire Line
	3950 3250 3950 3500
$Comp
L 74xx:74LS74 U5
U 2 1 5CE60619
P 4350 3150
F 0 "U5" H 4350 3200 50  0000 C CNN
F 1 "7474" H 4350 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 4350 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 4350 3150 50  0001 C CNN
	2    4350 3150
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR021
U 1 1 5CE66FF1
P 3450 2850
F 0 "#PWR021" H 3450 2700 50  0001 C CNN
F 1 "+5V" H 3465 3023 50  0000 C CNN
F 2 "" H 3450 2850 50  0001 C CNN
F 3 "" H 3450 2850 50  0001 C CNN
	1    3450 2850
	-1   0    0    -1  
$EndComp
Connection ~ 3050 3250
$Comp
L Device:LED D6
U 1 1 5CE67007
P 3050 3100
F 0 "D6" V 3250 3050 50  0000 R CNN
F 1 "LED" V 3150 3050 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 3050 3100 50  0001 C CNN
F 3 "~" H 3050 3100 50  0001 C CNN
	1    3050 3100
	0    1    -1   0   
$EndComp
Wire Wire Line
	3150 3250 3050 3250
Wire Wire Line
	3050 3250 3050 3500
$Comp
L 74xx:74LS74 U5
U 1 1 5CE67012
P 3450 3150
F 0 "U5" H 3450 3200 50  0000 C CNN
F 1 "7474" H 3450 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 3450 3150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 3450 3150 50  0001 C CNN
	1    3450 3150
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7900 2000 7900 1900
Wire Wire Line
	7050 1900 7050 2000
Wire Wire Line
	6150 1900 6150 2000
$Comp
L 74xx:74LS20 U4
U 1 1 5CCF62B8
P 2500 1600
F 0 "U4" H 2500 1550 50  0000 C CNN
F 1 "7420" H 2500 1650 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 2500 1600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS20" H 2500 1600 50  0001 C CNN
	1    2500 1600
	1    0    0    1   
$EndComp
Wire Wire Line
	2800 3150 2800 3550
Wire Wire Line
	2800 3550 3450 3550
Wire Wire Line
	7900 3550 7900 3450
Wire Wire Line
	7050 3450 7050 3550
Connection ~ 7050 3550
Wire Wire Line
	7050 3550 7900 3550
Wire Wire Line
	6150 3550 7050 3550
Wire Wire Line
	5250 3450 5250 3550
Wire Wire Line
	4350 3450 4350 3550
Wire Wire Line
	3450 3450 3450 3550
Wire Wire Line
	2200 1750 2150 1750
Wire Wire Line
	2150 1750 2150 1050
Connection ~ 2200 1750
Wire Wire Line
	2200 1450 2200 1100
Connection ~ 2200 1450
Wire Wire Line
	2050 2600 2050 3300
Wire Wire Line
	2050 3300 2200 3300
Wire Wire Line
	2200 3000 2200 2750
Wire Wire Line
	3150 2750 3150 3050
Wire Wire Line
	2200 3100 2150 3100
Wire Wire Line
	2150 3100 2150 2700
Wire Wire Line
	2200 3200 2100 3200
Wire Wire Line
	2100 3200 2100 2650
Connection ~ 6150 2000
$Comp
L 74xx:74LS74 U2
U 2 1 5CE41F48
P 6150 1600
F 0 "U2" H 6150 1650 50  0000 C CNN
F 1 "7474" H 6150 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 6150 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 6150 1600 50  0001 C CNN
	2    6150 1600
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6550 1950 6550 1500
Connection ~ 7050 2000
Wire Wire Line
	7050 2000 7900 2000
Wire Wire Line
	6150 2000 7050 2000
Wire Wire Line
	7350 1500 7400 1500
Wire Wire Line
	7350 1700 7350 1600
Wire Wire Line
	7350 1700 7500 1700
Wire Wire Line
	7400 1500 7400 1950
Wire Wire Line
	6650 1950 7400 1950
Wire Wire Line
	6450 1500 6550 1500
Wire Wire Line
	6450 1600 6450 1700
Wire Wire Line
	6450 1700 6650 1700
Connection ~ 5750 1700
Wire Wire Line
	5750 1700 5750 1950
Wire Wire Line
	5750 1700 5850 1700
$Comp
L Device:LED D3
U 1 1 5CE41F3D
P 5750 1550
F 0 "D3" V 5950 1500 50  0000 R CNN
F 1 "LED" V 5850 1500 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 5750 1550 50  0001 C CNN
F 3 "~" H 5750 1550 50  0001 C CNN
	1    5750 1550
	0    1    -1   0   
$EndComp
Wire Wire Line
	5750 1950 6550 1950
Wire Wire Line
	4850 1950 5650 1950
Wire Wire Line
	3950 1950 4750 1950
Wire Wire Line
	5650 1500 5550 1500
Wire Wire Line
	5650 1500 5650 1950
Wire Wire Line
	3950 1700 4050 1700
$Comp
L power:+5V #PWR01
U 1 1 5CE48857
P 5550 550
F 0 "#PWR01" H 5550 400 50  0001 C CNN
F 1 "+5V" H 5565 723 50  0000 C CNN
F 2 "" H 5550 550 50  0001 C CNN
F 3 "" H 5550 550 50  0001 C CNN
	1    5550 550 
	0    -1   1    0   
$EndComp
$Comp
L Device:LED D1
U 1 1 5CE48867
P 3950 1550
F 0 "D1" V 4150 1500 50  0000 R CNN
F 1 "LED" V 4050 1500 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 3950 1550 50  0001 C CNN
F 3 "~" H 3950 1550 50  0001 C CNN
	1    3950 1550
	0    1    -1   0   
$EndComp
Wire Wire Line
	3950 1700 3950 1950
Wire Wire Line
	4950 1050 4950 1500
Wire Wire Line
	4350 1900 4350 2000
Wire Wire Line
	5250 1900 5250 2000
$Comp
L 74xx:74LS74 U1
U 2 1 5CE48872
P 4350 1600
F 0 "U1" H 4350 1650 50  0000 C CNN
F 1 "7474" H 4350 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 4350 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 4350 1600 50  0001 C CNN
	2    4350 1600
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4750 1500 4750 1950
Wire Wire Line
	4750 1500 4650 1500
$Comp
L power:+5V #PWR07
U 1 1 5CE48851
P 4350 1300
F 0 "#PWR07" H 4350 1150 50  0001 C CNN
F 1 "+5V" H 4365 1473 50  0000 C CNN
F 2 "" H 4350 1300 50  0001 C CNN
F 3 "" H 4350 1300 50  0001 C CNN
	1    4350 1300
	-1   0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U2
U 1 1 5CE44D4E
P 5250 1600
F 0 "U2" H 5250 1650 50  0000 C CNN
F 1 "7474" H 5250 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 5250 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 5250 1600 50  0001 C CNN
	1    5250 1600
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4850 1700 4850 1950
Wire Wire Line
	4950 1700 4850 1700
$Comp
L Device:LED D2
U 1 1 5CE44D43
P 4850 1550
F 0 "D2" V 5050 1500 50  0000 R CNN
F 1 "LED" V 4950 1500 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 4850 1550 50  0001 C CNN
F 3 "~" H 4850 1550 50  0001 C CNN
	1    4850 1550
	0    1    -1   0   
$EndComp
Connection ~ 4850 1700
$Comp
L power:+5V #PWR08
U 1 1 5CE44D2D
P 5250 1300
F 0 "#PWR08" H 5250 1150 50  0001 C CNN
F 1 "+5V" H 5265 1473 50  0000 C CNN
F 2 "" H 5250 1300 50  0001 C CNN
F 3 "" H 5250 1300 50  0001 C CNN
	1    5250 1300
	-1   0    0    -1  
$EndComp
Connection ~ 4350 2000
Connection ~ 5250 2000
Wire Wire Line
	5250 2000 6150 2000
Wire Wire Line
	4350 2000 5250 2000
Wire Wire Line
	5550 1600 5550 1700
Wire Wire Line
	5550 1700 5750 1700
Wire Wire Line
	4650 1600 4650 1700
Wire Wire Line
	4650 1700 4850 1700
Wire Wire Line
	4050 1100 4050 1500
Connection ~ 3450 3550
Wire Wire Line
	3450 3550 4350 3550
Connection ~ 4350 3550
Wire Wire Line
	7500 3250 7350 3250
Wire Wire Line
	6500 3050 6500 3500
Wire Wire Line
	6650 3250 6450 3250
Wire Wire Line
	6450 3050 6500 3050
Wire Wire Line
	5550 3250 5550 3150
Connection ~ 5750 3250
Wire Wire Line
	5750 3250 5550 3250
Wire Wire Line
	5750 3250 5850 3250
Wire Wire Line
	5750 3250 5750 3500
Wire Wire Line
	5600 3500 5600 3050
Wire Wire Line
	4850 3500 5600 3500
Wire Wire Line
	4850 3250 4650 3250
Wire Wire Line
	5250 3550 6150 3550
Wire Wire Line
	4350 3550 5250 3550
Connection ~ 6150 3550
Connection ~ 5250 3550
Wire Wire Line
	6150 3450 6150 3500
Wire Wire Line
	4700 3500 4700 3050
Wire Wire Line
	3750 3050 3800 3050
Wire Wire Line
	3800 3050 3800 3500
Wire Wire Line
	3750 3150 3750 3250
Wire Wire Line
	3750 3250 3950 3250
Wire Wire Line
	3050 3500 3800 3500
Wire Wire Line
	3050 3250 2950 3250
Wire Wire Line
	2950 3250 2950 3600
Wire Wire Line
	2950 3600 8300 3600
Wire Wire Line
	2150 1050 4950 1050
Wire Wire Line
	2200 2750 3150 2750
Wire Wire Line
	2150 2700 4050 2700
Wire Wire Line
	4050 2700 4050 3050
Wire Wire Line
	4950 2650 4950 3050
Wire Wire Line
	2050 2600 5850 2600
Wire Wire Line
	5850 2600 5850 3050
NoConn ~ 5850 1500
NoConn ~ 6750 1500
NoConn ~ 7600 1500
NoConn ~ 7600 3050
NoConn ~ 6750 3050
$Comp
L power:GND #PWR027
U 1 1 5D3A0346
P 9000 3450
F 0 "#PWR027" H 9000 3200 50  0001 C CNN
F 1 "GND" H 9005 3277 50  0000 C CNN
F 2 "" H 9000 3450 50  0001 C CNN
F 3 "" H 9000 3450 50  0001 C CNN
	1    9000 3450
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR012
U 1 1 5D3A055C
P 9000 1900
F 0 "#PWR012" H 9000 1650 50  0001 C CNN
F 1 "GND" H 9005 1727 50  0000 C CNN
F 2 "" H 9000 1900 50  0001 C CNN
F 3 "" H 9000 1900 50  0001 C CNN
	1    9000 1900
	-1   0    0    -1  
$EndComp
Wire Wire Line
	9000 1950 9000 1900
Connection ~ 9000 1900
Wire Wire Line
	9900 1900 9450 1900
Connection ~ 9450 1900
Wire Wire Line
	9450 1900 9000 1900
Wire Wire Line
	9900 3450 9450 3450
Connection ~ 9000 3450
Connection ~ 9450 3450
Wire Wire Line
	9450 3450 9000 3450
$Comp
L power:+5V #PWR06
U 1 1 5D3C12F3
P 9000 1100
F 0 "#PWR06" H 9000 950 50  0001 C CNN
F 1 "+5V" H 9015 1273 50  0000 C CNN
F 2 "" H 9000 1100 50  0001 C CNN
F 3 "" H 9000 1100 50  0001 C CNN
	1    9000 1100
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR020
U 1 1 5D3C1453
P 9000 2650
F 0 "#PWR020" H 9000 2500 50  0001 C CNN
F 1 "+5V" H 9015 2823 50  0000 C CNN
F 2 "" H 9000 2650 50  0001 C CNN
F 3 "" H 9000 2650 50  0001 C CNN
	1    9000 2650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	9900 2650 9450 2650
Connection ~ 9000 2650
Connection ~ 9450 2650
Wire Wire Line
	9450 2650 9000 2650
Wire Wire Line
	9900 1100 9450 1100
Connection ~ 9000 1100
Connection ~ 9450 1100
Wire Wire Line
	9450 1100 9000 1100
Wire Wire Line
	2800 2000 3450 2000
Wire Wire Line
	8200 3150 8450 3150
Connection ~ 9900 1100
Connection ~ 9900 3450
Wire Notes Line
	3200 5100 8750 5100
Text Label 4700 4100 2    50   ~ 0
HOLD
Text Notes 3250 3850 0    50   ~ 0
Prescaler
Wire Wire Line
	7250 4850 7250 5500
Wire Wire Line
	4700 4750 4700 4950
Wire Wire Line
	4700 4950 5850 4950
Wire Wire Line
	5850 4950 5850 4550
Wire Wire Line
	5800 4550 5850 4550
Connection ~ 5850 4550
Wire Wire Line
	5850 4550 5850 4450
Wire Wire Line
	6000 3850 7200 3850
Wire Wire Line
	7200 4750 7150 4750
Wire Wire Line
	7200 3850 7200 4750
Wire Wire Line
	6050 4200 6000 4200
Wire Wire Line
	6050 3800 7250 3800
Wire Wire Line
	7250 3800 7250 4850
Wire Wire Line
	7250 4850 7150 4850
Wire Wire Line
	4700 4550 4600 4550
Wire Wire Line
	4600 4550 4600 5250
Wire Wire Line
	4600 5250 6250 5250
Wire Wire Line
	6250 5250 6250 5650
Text Notes 4650 3900 0    50   ~ 0
Divide by 10
Text Notes 7350 3900 0    50   ~ 0
Divide by 12
Text Label 5200 5500 2    50   ~ 0
2Hz
Wire Notes Line
	3200 3750 3200 6100
$Comp
L Ken:4060 U8
U 2 1 5CF35432
P 2950 4250
F 0 "U8" H 3097 4296 50  0000 L CNN
F 1 "4060" H 3097 4205 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm_LongPads" H 2950 4400 50  0001 C CNN
F 3 "" H 2950 4250 50  0001 C CNN
	2    2950 4250
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR030
U 1 1 5CF40403
P 2950 3950
F 0 "#PWR030" H 2950 3800 50  0001 C CNN
F 1 "+5V" H 2965 4123 50  0000 C CNN
F 2 "" H 2950 3950 50  0001 C CNN
F 3 "" H 2950 3950 50  0001 C CNN
	1    2950 3950
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR037
U 1 1 5CF40614
P 2950 4550
F 0 "#PWR037" H 2950 4300 50  0001 C CNN
F 1 "GND" H 2955 4377 50  0000 C CNN
F 2 "" H 2950 4550 50  0001 C CNN
F 3 "" H 2950 4550 50  0001 C CNN
	1    2950 4550
	-1   0    0    -1  
$EndComp
Wire Wire Line
	2500 4300 2700 4300
Wire Wire Line
	2700 5800 5200 5800
Text Label 5200 5800 2    50   ~ 0
256Hz
Wire Wire Line
	2500 4400 2650 4400
Wire Wire Line
	2650 5950 7250 5950
Text Label 7250 5800 2    50   ~ 0
128Hz
NoConn ~ 2500 4100
NoConn ~ 2500 4200
NoConn ~ 2500 4500
NoConn ~ 2500 4600
NoConn ~ 2500 4700
NoConn ~ 2500 4800
NoConn ~ 2500 4900
$Comp
L power:GND #PWR039
U 1 1 5CE2C4C2
P 1500 5300
F 0 "#PWR039" H 1500 5050 50  0001 C CNN
F 1 "GND" H 1505 5127 50  0000 C CNN
F 2 "" H 1500 5300 50  0001 C CNN
F 3 "" H 1500 5300 50  0001 C CNN
	1    1500 5300
	-1   0    0    -1  
$EndComp
Wire Wire Line
	2650 4400 2650 5950
Wire Wire Line
	2700 4300 2700 5800
$Comp
L Device:C_Small C1
U 1 1 5CE4D88A
P 1850 5850
F 0 "C1" H 1650 5900 50  0000 L CNN
F 1 "22pF" H 1650 5800 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 1850 5850 50  0001 C CNN
F 3 "~" H 1850 5850 50  0001 C CNN
	1    1850 5850
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C2
U 1 1 5CE4DA5B
P 2050 5850
F 0 "C2" H 2142 5896 50  0000 L CNN
F 1 "22pF" H 2142 5805 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 2050 5850 50  0001 C CNN
F 3 "~" H 2050 5850 50  0001 C CNN
	1    2050 5850
	1    0    0    -1  
$EndComp
$Comp
L Device:Crystal_Small Y1
U 1 1 5CE4E84F
P 1950 5750
F 0 "Y1" H 2250 5900 50  0000 C CNN
F 1 "32768Hz" H 2250 5800 50  0000 C CNN
F 2 "Crystal:Crystal_C38-LF_D3.0mm_L8.0mm_Horizontal" H 1950 5750 50  0001 C CNN
F 3 "~" H 1950 5750 50  0001 C CNN
	1    1950 5750
	-1   0    0    -1  
$EndComp
$Comp
L Device:R_Small R13
U 1 1 5CE6E723
P 1950 5550
F 0 "R13" V 1754 5550 50  0000 C CNN
F 1 "10M" V 1845 5550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 1950 5550 50  0001 C CNN
F 3 "~" H 1950 5550 50  0001 C CNN
	1    1950 5550
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R14
U 1 1 5CE6E865
P 2050 5650
F 0 "R14" H 2300 5700 50  0000 R CNN
F 1 "470k" H 2300 5600 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 2050 5650 50  0001 C CNN
F 3 "~" H 2050 5650 50  0001 C CNN
	1    2050 5650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1850 5750 1850 5550
Connection ~ 1850 5750
Wire Wire Line
	2500 5550 2500 5300
Wire Wire Line
	1850 5550 1400 5550
Wire Wire Line
	1400 5550 1400 4100
Wire Wire Line
	1400 4100 1500 4100
Connection ~ 1850 5550
$Comp
L power:GND #PWR044
U 1 1 5CE8FFE6
P 1850 5950
F 0 "#PWR044" H 1850 5700 50  0001 C CNN
F 1 "GND" H 1855 5777 50  0000 C CNN
F 2 "" H 1850 5950 50  0001 C CNN
F 3 "" H 1850 5950 50  0001 C CNN
	1    1850 5950
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR045
U 1 1 5CE90136
P 2050 5950
F 0 "#PWR045" H 2050 5700 50  0001 C CNN
F 1 "GND" H 2055 5777 50  0000 C CNN
F 2 "" H 2050 5950 50  0001 C CNN
F 3 "" H 2050 5950 50  0001 C CNN
	1    2050 5950
	-1   0    0    -1  
$EndComp
Wire Wire Line
	2600 5500 2600 5000
Wire Wire Line
	2600 5000 2500 5000
Wire Wire Line
	2600 5500 5200 5500
NoConn ~ 2500 5200
Wire Notes Line
	1250 3750 8750 3750
Wire Wire Line
	8450 3150 8450 5650
NoConn ~ 5550 5300
$Comp
L Device:C_Small C6
U 1 1 5CE9C758
P 9650 5650
F 0 "C6" H 9500 5700 50  0000 L CNN
F 1 "0.1u" H 9500 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 9650 5650 50  0001 C CNN
F 3 "~" H 9650 5650 50  0001 C CNN
	1    9650 5650
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C7
U 1 1 5CE9E2A9
P 9850 5650
F 0 "C7" H 9700 5700 50  0000 L CNN
F 1 "0.1u" H 9700 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 9850 5650 50  0001 C CNN
F 3 "~" H 9850 5650 50  0001 C CNN
	1    9850 5650
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C8
U 1 1 5CE9E367
P 10050 5650
F 0 "C8" H 9900 5700 50  0000 L CNN
F 1 "0.1u" H 9900 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 10050 5650 50  0001 C CNN
F 3 "~" H 10050 5650 50  0001 C CNN
	1    10050 5650
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR051
U 1 1 5CE9E45D
P 9650 5550
F 0 "#PWR051" H 9650 5400 50  0001 C CNN
F 1 "+5V" H 9665 5723 50  0000 C CNN
F 2 "" H 9650 5550 50  0001 C CNN
F 3 "" H 9650 5550 50  0001 C CNN
	1    9650 5550
	-1   0    0    -1  
$EndComp
Wire Wire Line
	9650 5550 9850 5550
Connection ~ 9650 5550
$Comp
L power:GND #PWR052
U 1 1 5CEA9F34
P 9650 5750
F 0 "#PWR052" H 9650 5500 50  0001 C CNN
F 1 "GND" H 9655 5577 50  0000 C CNN
F 2 "" H 9650 5750 50  0001 C CNN
F 3 "" H 9650 5750 50  0001 C CNN
	1    9650 5750
	-1   0    0    -1  
$EndComp
Wire Wire Line
	9650 5750 9850 5750
Connection ~ 9650 5750
$Comp
L power:GND #PWR0101
U 1 1 5CE9207E
P 5500 7550
F 0 "#PWR0101" H 5500 7300 50  0001 C CNN
F 1 "GND" H 5650 7550 50  0000 C CNN
F 2 "" H 5500 7550 50  0001 C CNN
F 3 "" H 5500 7550 50  0001 C CNN
	1    5500 7550
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0102
U 1 1 5CE92298
P 5500 7050
F 0 "#PWR0102" H 5500 6900 50  0001 C CNN
F 1 "+5V" H 5650 7100 50  0000 C CNN
F 2 "" H 5500 7050 50  0001 C CNN
F 3 "" H 5500 7050 50  0001 C CNN
	1    5500 7050
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4600 6500 4600 5700
Wire Wire Line
	6650 6500 6150 6500
Connection ~ 4600 5700
$Comp
L Switch:SW_Push SW3
U 1 1 5CF63C9C
P 1350 6700
F 0 "SW3" V 1400 6650 50  0000 R CNN
F 1 "Setting" V 1300 6650 50  0000 R CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm_H4.3mm" H 1350 6900 50  0001 C CNN
F 3 "~" H 1350 6900 50  0001 C CNN
	1    1350 6700
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_Push SW2
U 1 1 5CF64183
P 3450 6700
F 0 "SW2" V 3496 6652 50  0000 R CNN
F 1 "Setting" V 3405 6652 50  0000 R CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm_H4.3mm" H 3450 6900 50  0001 C CNN
F 3 "~" H 3450 6900 50  0001 C CNN
	1    3450 6700
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_Push SW1
U 1 1 5CF6444C
P 5000 6700
F 0 "SW1" V 5046 6652 50  0000 R CNN
F 1 "Setting" V 4955 6652 50  0000 R CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm_H4.3mm" H 5000 6900 50  0001 C CNN
F 3 "~" H 5000 6900 50  0001 C CNN
	1    5000 6700
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR053
U 1 1 5CF6471A
P 1350 6900
F 0 "#PWR053" H 1350 6650 50  0001 C CNN
F 1 "GND" H 1355 6727 50  0000 C CNN
F 2 "" H 1350 6900 50  0001 C CNN
F 3 "" H 1350 6900 50  0001 C CNN
	1    1350 6900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR054
U 1 1 5CF64895
P 3450 6900
F 0 "#PWR054" H 3450 6650 50  0001 C CNN
F 1 "GND" H 3455 6727 50  0000 C CNN
F 2 "" H 3450 6900 50  0001 C CNN
F 3 "" H 3450 6900 50  0001 C CNN
	1    3450 6900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR055
U 1 1 5CF649BD
P 5000 6900
F 0 "#PWR055" H 5000 6650 50  0001 C CNN
F 1 "GND" H 5005 6727 50  0000 C CNN
F 2 "" H 5000 6900 50  0001 C CNN
F 3 "" H 5000 6900 50  0001 C CNN
	1    5000 6900
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x05_Male J1
U 1 1 5CF82506
P 5700 7250
F 0 "J1" H 5672 7274 50  0000 R CNN
F 1 "USB power" H 5672 7183 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical" H 5700 7250 50  0001 C CNN
F 3 "~" H 5700 7250 50  0001 C CNN
	1    5700 7250
	-1   0    0    -1  
$EndComp
Wire Wire Line
	1950 6500 2200 6500
Wire Wire Line
	5500 7550 5500 7450
Wire Wire Line
	5000 6500 5550 6500
Wire Wire Line
	3450 6500 4000 6500
$Comp
L Device:CP_Small C13
U 1 1 5D248A29
P 11050 5650
F 0 "C13" H 10900 5700 50  0000 L CNN
F 1 "10u" H 10900 5600 50  0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 11050 5650 50  0001 C CNN
F 3 "~" H 11050 5650 50  0001 C CNN
	1    11050 5650
	1    0    0    -1  
$EndComp
$Comp
L Connector_Generic:Conn_01x01 J2
U 1 1 5D22248C
P 4400 7450
F 0 "J2" V 4364 7362 50  0000 R CNN
F 1 "M" V 4273 7362 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical" H 4400 7450 50  0001 C CNN
F 3 "~" H 4400 7450 50  0001 C CNN
	1    4400 7450
	0    -1   -1   0   
$EndComp
$Comp
L Connector_Generic:Conn_01x01 J3
U 1 1 5D245DBF
P 4850 7450
F 0 "J3" V 4814 7362 50  0000 R CNN
F 1 "M" V 4723 7362 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical" H 4850 7450 50  0001 C CNN
F 3 "~" H 4850 7450 50  0001 C CNN
	1    4850 7450
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR058
U 1 1 5D245F34
P 4400 7650
F 0 "#PWR058" H 4400 7400 50  0001 C CNN
F 1 "GND" H 4550 7650 50  0000 C CNN
F 2 "" H 4400 7650 50  0001 C CNN
F 3 "" H 4400 7650 50  0001 C CNN
	1    4400 7650
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR059
U 1 1 5D2460B0
P 4850 7650
F 0 "#PWR059" H 4850 7400 50  0001 C CNN
F 1 "GND" H 5000 7650 50  0000 C CNN
F 2 "" H 4850 7650 50  0001 C CNN
F 3 "" H 4850 7650 50  0001 C CNN
	1    4850 7650
	-1   0    0    -1  
$EndComp
NoConn ~ 5500 7150
NoConn ~ 5500 7250
NoConn ~ 5500 7350
$Comp
L Ken:4060 U8
U 1 1 5D29C67C
P 2000 4700
F 0 "U8" H 2000 5565 50  0000 C CNN
F 1 "4060" H 2000 5474 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm_LongPads" H 2000 4850 50  0001 C CNN
F 3 "" H 2000 4700 50  0001 C CNN
	1    2000 4700
	1    0    0    -1  
$EndComp
Connection ~ 3950 1700
$Comp
L Device:R_Network08 RN1
U 1 1 5D23A9BD
P 5950 750
F 0 "RN1" H 6338 796 50  0000 L CNN
F 1 "R" H 6338 705 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP9" V 6425 750 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5950 750 50  0001 C CNN
	1    5950 750 
	1    0    0    -1  
$EndComp
Wire Wire Line
	6150 3500 6150 3550
Wire Notes Line
	1250 6100 8750 6100
Wire Wire Line
	2200 1100 4050 1100
Wire Wire Line
	5750 1400 5750 950 
Wire Wire Line
	5550 950  3950 950 
Wire Wire Line
	3950 950  3950 1400
Wire Wire Line
	4850 1400 4850 1000
Wire Wire Line
	4850 1000 5650 1000
Wire Wire Line
	5650 1000 5650 950 
Wire Wire Line
	5850 950  5850 1050
Wire Wire Line
	5850 1050 6650 1050
Wire Wire Line
	6650 1050 6650 1400
Wire Wire Line
	5950 950  5950 1000
Wire Wire Line
	5950 1000 7500 1000
Wire Wire Line
	7500 1000 7500 1400
Wire Notes Line
	1250 550  1250 6100
Wire Notes Line
	8750 550  8750 6100
$Comp
L Device:R_Network08 RN2
U 1 1 5D36007E
P 5850 2250
F 0 "RN2" H 6238 2296 50  0000 L CNN
F 1 "R" H 6238 2205 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP9" V 6325 2250 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5850 2250 50  0001 C CNN
	1    5850 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	2100 2650 4950 2650
Wire Wire Line
	8300 1600 8300 3600
Wire Wire Line
	8300 1600 8200 1600
Wire Wire Line
	5450 2450 3050 2450
Wire Wire Line
	3050 2450 3050 2950
Wire Wire Line
	5550 2450 5550 2500
Wire Wire Line
	5550 2500 3950 2500
Wire Wire Line
	3950 2500 3950 2950
Wire Wire Line
	5650 2550 4850 2550
Wire Wire Line
	4850 2550 4850 2950
Wire Wire Line
	5650 2450 5650 2550
Wire Wire Line
	5750 2450 5750 2950
Wire Wire Line
	5850 2450 5850 2550
Wire Wire Line
	5850 2550 6650 2550
Wire Wire Line
	6650 2550 6650 2950
Wire Wire Line
	5950 2450 5950 2500
Wire Wire Line
	5950 2500 7500 2500
Wire Wire Line
	7500 2500 7500 2950
$Comp
L power:+5V #PWR02
U 1 1 5D41F999
P 5450 2050
F 0 "#PWR02" H 5450 1900 50  0001 C CNN
F 1 "+5V" H 5465 2223 50  0000 C CNN
F 2 "" H 5450 2050 50  0001 C CNN
F 3 "" H 5450 2050 50  0001 C CNN
	1    5450 2050
	0    -1   1    0   
$EndComp
NoConn ~ 6050 950 
NoConn ~ 6150 950 
NoConn ~ 6250 950 
NoConn ~ 6050 2450
NoConn ~ 6150 2450
Wire Wire Line
	5750 3500 6500 3500
$Comp
L Device:C_Small C9
U 1 1 5D2A339B
P 10250 5650
F 0 "C9" H 10100 5700 50  0000 L CNN
F 1 "0.1u" H 10100 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 10250 5650 50  0001 C CNN
F 3 "~" H 10250 5650 50  0001 C CNN
	1    10250 5650
	1    0    0    -1  
$EndComp
Connection ~ 6050 4400
$Comp
L 74xx_IEEE:7490 U10
U 1 1 5CD36E30
P 6600 4850
F 0 "U10" H 6700 5600 50  0000 C CNN
F 1 "7493" H 6700 5400 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 6600 4850 50  0001 C CNN
F 3 "" H 6600 4850 50  0001 C CNN
	1    6600 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5800 4850 5950 4850
Wire Wire Line
	5950 4850 5950 4550
Wire Wire Line
	5950 4550 6050 4550
Connection ~ 7250 4850
Wire Wire Line
	6050 4750 6050 4950
Wire Wire Line
	6050 4950 7300 4950
Wire Wire Line
	7300 4950 7300 4550
Wire Wire Line
	7300 4550 7150 4550
Wire Wire Line
	6000 3850 6000 4200
Wire Wire Line
	6050 3800 6050 4100
$Comp
L Mechanical:MountingHole H1
U 1 1 5D3410B4
P 9200 4300
F 0 "H1" H 9300 4346 50  0000 L CNN
F 1 "MountingHole" H 9300 4255 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.5mm_Pad" H 9200 4300 50  0001 C CNN
F 3 "~" H 9200 4300 50  0001 C CNN
	1    9200 4300
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H2
U 1 1 5D341257
P 9450 4300
F 0 "H2" H 9550 4346 50  0000 L CNN
F 1 "MountingHole" H 9550 4255 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.5mm_Pad" H 9450 4300 50  0001 C CNN
F 3 "~" H 9450 4300 50  0001 C CNN
	1    9450 4300
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H3
U 1 1 5D34130C
P 9700 4300
F 0 "H3" H 9800 4346 50  0000 L CNN
F 1 "MountingHole" H 9800 4255 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.5mm_Pad" H 9700 4300 50  0001 C CNN
F 3 "~" H 9700 4300 50  0001 C CNN
	1    9700 4300
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H4
U 1 1 5D341425
P 9950 4300
F 0 "H4" H 10050 4346 50  0000 L CNN
F 1 "MountingHole" H 10050 4255 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.5mm_Pad" H 9950 4300 50  0001 C CNN
F 3 "~" H 9950 4300 50  0001 C CNN
	1    9950 4300
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C10
U 1 1 5D341BC2
P 10450 5650
F 0 "C10" H 10300 5700 50  0000 L CNN
F 1 "0.1u" H 10300 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 10450 5650 50  0001 C CNN
F 3 "~" H 10450 5650 50  0001 C CNN
	1    10450 5650
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C11
U 1 1 5D341CBD
P 10650 5650
F 0 "C11" H 10500 5700 50  0000 L CNN
F 1 "0.1u" H 10500 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 10650 5650 50  0001 C CNN
F 3 "~" H 10650 5650 50  0001 C CNN
	1    10650 5650
	1    0    0    -1  
$EndComp
Connection ~ 10850 5550
Connection ~ 10850 5750
Connection ~ 9850 5550
Connection ~ 9850 5750
Connection ~ 10050 5550
Connection ~ 10050 5750
Connection ~ 10450 5550
Connection ~ 10450 5750
Wire Wire Line
	9850 5550 10050 5550
Wire Wire Line
	9850 5750 10050 5750
Wire Wire Line
	10450 5550 10650 5550
Wire Wire Line
	10450 5750 10650 5750
Connection ~ 10250 5550
Connection ~ 10250 5750
Wire Wire Line
	10250 5550 10450 5550
Wire Wire Line
	10250 5750 10450 5750
Wire Wire Line
	10050 5750 10250 5750
Wire Wire Line
	10050 5550 10250 5550
Connection ~ 10650 5550
Connection ~ 10650 5750
$Comp
L Device:C_Small C12
U 1 1 5D3AFB7E
P 10850 5650
F 0 "C12" H 10700 5700 50  0000 L CNN
F 1 "0.1u" H 10700 5600 50  0000 L CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 10850 5650 50  0001 C CNN
F 3 "~" H 10850 5650 50  0001 C CNN
	1    10850 5650
	1    0    0    -1  
$EndComp
Wire Wire Line
	10650 5550 10850 5550
Wire Wire Line
	10650 5750 10850 5750
Wire Wire Line
	10850 5550 11050 5550
Wire Wire Line
	10850 5750 11050 5750
$Comp
L Device:R_Small R15
U 1 1 5D58A00F
P 1950 6400
F 0 "R15" H 1892 6354 50  0000 R CNN
F 1 "47k" H 1892 6445 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 1950 6400 50  0001 C CNN
F 3 "~" H 1950 6400 50  0001 C CNN
	1    1950 6400
	1    0    0    1   
$EndComp
$Comp
L power:+5V #PWR03
U 1 1 5D58A207
P 1950 6300
F 0 "#PWR03" H 1950 6150 50  0001 C CNN
F 1 "+5V" H 1965 6473 50  0000 C CNN
F 2 "" H 1950 6300 50  0001 C CNN
F 3 "" H 1950 6300 50  0001 C CNN
	1    1950 6300
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U11
U 1 1 5D58BFEA
P 2500 7250
F 0 "U11" H 2500 7567 50  0000 C CNN
F 1 "7414" H 2500 7476 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 2500 7250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2500 7250 50  0001 C CNN
	1    2500 7250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0103
U 1 1 5D58CD28
P 2200 7250
F 0 "#PWR0103" H 2200 7000 50  0001 C CNN
F 1 "GND" H 2205 7077 50  0000 C CNN
F 2 "" H 2200 7250 50  0001 C CNN
F 3 "" H 2200 7250 50  0001 C CNN
	1    2200 7250
	1    0    0    -1  
$EndComp
NoConn ~ 2800 7250
$Comp
L 74xx:74LS74 U1
U 1 1 5D5A7EFE
P 3450 1600
F 0 "U1" H 3450 1650 50  0000 C CNN
F 1 "7474" H 3450 1550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 3450 1600 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 3450 1600 50  0001 C CNN
	1    3450 1600
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0104
U 1 1 5D5A840F
P 3450 1300
F 0 "#PWR0104" H 3450 1150 50  0001 C CNN
F 1 "+5V" H 3465 1473 50  0000 C CNN
F 2 "" H 3450 1300 50  0001 C CNN
F 3 "" H 3450 1300 50  0001 C CNN
	1    3450 1300
	-1   0    0    -1  
$EndComp
Wire Wire Line
	3450 1900 3450 2000
Connection ~ 3450 2000
Wire Wire Line
	3450 2000 4350 2000
Wire Wire Line
	3750 1500 3750 1600
$Comp
L power:GND #PWR0105
U 1 1 5D5D94E8
P 3750 1600
F 0 "#PWR0105" H 3750 1350 50  0001 C CNN
F 1 "GND" H 3755 1427 50  0000 C CNN
F 2 "" H 3750 1600 50  0001 C CNN
F 3 "" H 3750 1600 50  0001 C CNN
	1    3750 1600
	-1   0    0    -1  
$EndComp
Connection ~ 3750 1600
NoConn ~ 3150 1500
NoConn ~ 3150 1700
$Comp
L Device:C_Small C3
U 1 1 5D60C6B6
P 1950 6600
F 0 "C3" H 1800 6550 50  0000 R CNN
F 1 "0.1u" H 1800 6650 50  0000 R CNN
F 2 "Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2" H 1950 6600 50  0001 C CNN
F 3 "~" H 1950 6600 50  0001 C CNN
	1    1950 6600
	1    0    0    1   
$EndComp
Connection ~ 1950 6500
$Comp
L power:GND #PWR0106
U 1 1 5D60C94A
P 1950 6700
F 0 "#PWR0106" H 1950 6450 50  0001 C CNN
F 1 "GND" H 1955 6527 50  0000 C CNN
F 2 "" H 1950 6700 50  0001 C CNN
F 3 "" H 1950 6700 50  0001 C CNN
	1    1950 6700
	1    0    0    -1  
$EndComp
$Comp
L Ken:7450 U12
U 2 1 5CBEE95D
P 7750 5650
F 0 "U12" H 7800 5850 50  0000 C CNN
F 1 "7450" H 7800 5550 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_LongPads" H 7750 5650 50  0001 C CNN
F 3 "" H 7750 5650 50  0001 C CNN
	2    7750 5650
	1    0    0    -1  
$EndComp
Wire Wire Line
	7250 5800 7250 5950
Wire Wire Line
	1350 6500 1950 6500
Connection ~ 2050 5750
Wire Wire Line
	2050 5550 2500 5550
Connection ~ 2050 5550
$EndSCHEMATC
