XE8000
The XE8000 series is a low-power microcontroller family from XEMICS (now a business unit of Semtech). Advanced analog features are combined with a proprietary RISC CPU named CoolRISC on all XE8000 devices. The CPU has 8-bits data bus and 22 bits instruction bus. All instructions (including 8*8 bit multiplication) are executed in 1 clock cycle. The analog features include the ZoomingADC a new type of delta-sigma modulator for analog-to-digital conversion that includes capabilities to amplify and offset the input signal during the acquisition. UART, timers, RAM, MTP-ROM ("flash" program memory), watchdog timer, analog-to-digital converter, digital-to-analog converter, RC and XTAL oscillators, interrupts, I/O, drivers for seven segment displays and RF interface are possible on-chip features. XE8000 devices 

For sensor interfacing:
 XE88LC01A
 XE88LC02 (with display drivers)
 XE88LC05A (with DAC)

For RF interfacing:
 XE88LC06A
 XE88LC07A

Typical target applications 

 Sensor interface
 4-20 mA current loop
 Battery supplied devices
 RF interface

External links 

 http://www.xemics.com/
 http://www.raisonance.com/ (Compiler)
 http://www.phyton.com/ (Compiler, programmer and emulators)

Microcontrollers