MDT10P22

MDT10C22 1. General Description This ROM-Based 8 -bit micro-controller uses a fully static CMOS design technology to achieve high speed, small size, low power and high noise immunity. On chip memory includes 1K words ROM and80 bytes static RAM. Four comparator inputs with external Vref (not for 18 pin package) are also provided. u u u XTAL¡ÐStandard crystal oscillator HFXT¡ÐHigh frequency crystal oscillator 4 oscillator start-up time can be selected by programming option: 150 µs, 20 ms, 40 ms, 80 ms On-chip RC oscillator based Watchdog Timer(WDT) can be operated freely 12 I/O(for 18 pins package),14 I/O(for 20 pins package),16 I/O(for 22/24 pins package) pins with their own independent direction control 2. Features u u u u Fully CMOS static design 8-bit data bus On chip ROM size : 1 K words Internal RAM size : 80 bytes (72 general purpose registers, 8 special registers) u u u u u u 36 single word instructions 14-bit instructions 2-level stacks Operating voltage : 2.3V ~ 5.5 V Operating frequency : 0 ~ 20 MHz The most fast execution time is 200 ns under 20 MHz in all single cycle instructions except the branch instruction u Addressing modes include direct, indirect and relative addressing modes u u u u u Built-in Power-on Reset 4 Channel comparator Power edge-detector Reset Sleep Mode for power saving 8-bit real time clock/counter(RTCC) with 8-bit programmable prescaler u 4 types of oscillator can be selected by programming option: RC¡ÐLow cost RC oscillator LFXT¡ÐLow frequen...