质优价廉的lcd驱动ic--fm8p68e(裸片)

˙only 49 instructions
˙4k x 13 bits on chip eprom/rom
˙totally 272 x 8 bits on chip general purpose registers (sram):
˙8-level deep hardware stack
˙8-bit real time clock/counter with 8-bit programmable prescaler
˙4 sets of 8-bit auto reload counter/timer
˙1 irout/pwm generator
˙lcd driver with 4(common) x 32(segment) pixels; 1/3, 1/2 bias and 1/4, 1/3, 1/2 duty selection
˙3 channels resistor to frequency converter (rfc) output
˙on chip watchdog timer (wdt) with internal oscillator and soft-ware watch-dog enable/disable control
˙4 i/o ports with independent direction control
˙soft-ware i/o pull-high/pull-down or open-drain control
˙7 internal interrupt source; three external interrupt sourcee
˙wake-up from sleep/idle mode
˙dual clock operation: main-oscillator and sub-oscillator