MDT10C55B

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P. 1

2006/12

Ver. 1.0

1. General Description

This ROM-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 inclu-des 1K words of ROM, and 72 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 : 72 bytes

36 single word instructions

14-bit instructions

2-level stacks

Operating voltage : 2.5 V ~ 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

Addressing modes include direct, indirect and

relative addressing modes

Power-on Reset

Power edge-detector Reset

Sleep Mode for power saving

5 types of oscillator can be selected by

programming option:

INTRC－Internal 4 MHz RC oscillator

RC－Low cost RC oscillator

LFXT－Low frequency crystal oscillator

XTAL－Standard crystal oscillator

HFXT－High frequency crystal oscillator

3 oscillator start-up time can be selected by

programming option:

20 ms, 40 ms, 80 ms

8-bit real time clock/counter(RTCC) with 8-bit

programmable prescaler

On-chip RC oscillator based Watchdog

Timer(WDT)

Wake-up from sleep on pin change

3. Applications

The application areas of this MDT10C55B range

from appliance motor control and high speed

automotive to low power remote

transmitters/receivers, small instruments, chargers,

toy, automobile and PC pe-ripheral … etc.