Activity 2.2.2 Universal Gates: NAND Only Logic Design Introduction The block diagram shown below represents a voting booth monitoring system. For privacy reasons, a voting booth can only be used if the booth on either side is unoccupied. The monitoring system has four inputs and two outputs. Whenever a voting booth is occupied, the corresponding input (A, B, C, & D) is a (1). The first output, Booth, is a (1) whenever a voting booth is available. The second output, Alarm, is a (1) whenever the privacy rule is violated. In this activity you will implement NAND only combinational logic circuits for the two outputs Booth and Alarm. These NAND only designs will be compared with the original AOI implementations in terms of efficiency and gate/IC utilization. In a future activity, these NAND only designs will be compared to the circuits implemented using only NOR gates. Equipment Circuit Design Software (CDS) Breadboard (DMS or DLB) #22 Gauge solid wire Integrated Circuits (74LS00) Procedure For the sake of time, the truth table and K-Maps for the voting booth monitor systems have been completed for you. Note, for the output Booth we took advantage of several don’t care conditions.
Activity 2.2.2 Universal Gates: NAND Only Logic Design Introduction The block diagram shown below represents a voting booth monitoring system. For privacy reasons, a voting booth can only be used if the booth on either side is unoccupied. The monitoring system has four inputs and two outputs. Whenever a voting booth is occupied, the corresponding input (A, B, C, & D) is a (1). The first output, Booth, is a (1) whenever a voting booth is available. The second output, Alarm, is a (1) whenever the privacy rule is violated. In this activity you will implement NAND only combinational logic circuits for the two outputs Booth and Alarm. These NAND only designs will be compared with the original AOI implementations in terms of efficiency and gate/IC utilization. In a future activity, these NAND only designs will be compared to the circuits implemented using only NOR gates. Equipment Circuit Design Software (CDS) Breadboard (DMS or DLB) #22 Gauge solid wire Integrated Circuits (74LS00) Procedure For the sake of time, the truth table and K-Maps for the voting booth monitor systems have been completed for you. Note, for the output Booth we took advantage of several don’t care conditions.
2.2.2.a_universalgatesnandlogicdesign.docx