1. general description this eprom-based 8-bit micro-controller uses a fully static cmos technology process to achieve higher speed and smaller size with the low power consump-tion and high noise immunity. on chip memory includes 1k words of rom, and 64 bytes of static ram. 2. features the followings are some of the features on the hardware and software : ? fully cmos static design ? 8-bit data bus ? on chip rom size : 1k words ? internal ram size : 64 bytes ? 37 single word instructions ? 14-bit instructions ? 8-level stacks ? operating voltage : 2.5 v ~ 5.5 v ? built in 8mhz, 4mhz internal rc ? oscillator can be selected by programming option: intrc－internal 8mhz/4mhz ? addressing modes include direct, indirect and relative addressing modes ? power-on reset ? power edge-detector reset ? sleep mode for power saving ? 8-bit real time clock/counter(rtcc) with 8-bit programmable prescaler ? soft-ware i/o pull-up/down or open-drain control ? on-chip rc oscillator based watchdog timer(wdt) ? timer 1: 8-bit pwm/counter with 8 bit period ? five interrupt source： -external int pin (pb0) -timer0 -pb5~1 interrupt on pin change -pa5~0 interrupt on pin change -tmr1 and pr1 compare pins i/o osc mdt10p611p12 14 12 mdt10p611s12 14 12 irc 8mhz/4mhz 3. applications the application areas of this 10p611 range from appliance motor control and high speed automotive to low power remote transmitters/receivers, small instruments, toy, automobile.