MDT1005

MDT1005 1. General Description This ROM-Based 8-bit micro-controller uses a fully static CMOS design technology combines higher speed and smaller size with the low power and high noise immunity of CMOS. On chip memory system includes 0.5 K bytes of ROM, and 32 bytes of static RAM. www.DataSheet4U.com 2. Features The followings are some of the features on the hardware and software : u Fully CMOS static design u 8-bit data bus u On chip ROM size : 512 words u Internal RAM size : 32 bytes (25 general purpose registers, 7 special registers) u 36 single word instructions u 14-bit instructions u 2-level stacks u Operating voltage : 2.3V ~ 6.3 V u Operating frequency : 0 ~ 20 MHz u 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 Power-on Reset u Power edge-detector Reset u Sleep Mode for power saving u 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 frequency crystal oscillator XTAL¡ÐStandard crystal oscillator HFXT¡ÐHigh frequency crystal oscillator u 4 oscillator start-up time can be selected by programming option: 150 µs, 20 ms, 40 ms, 80 ms u On-chip RC oscillator based Watchdog Timer(WDT) can be operated freely u Pull up resistors for the following pins : PA0~PA3, PB0~PB7, /MCLR, RTCC u Pull down resistors for the ...