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MDT2051

8-bit micro-controller

Micon Design Technology Corporation 

MDT2051

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 incl-udes 1K words of ROM, and 68 bytes of

static RAM.

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 EPROM size : 1.0 K words

u Internal RAM size : 84 bytes

(68 general purpose registers, 16 special

registers)

u 37 single word instructions

u 14-bit instructions

u 8-level stacks

u Operating voltage : 2.5 V ~ 5.5 V (PRD Disable)

4.5 V ~ 5.5 V (PRD Enable)

u Operating frequency : DC ~ 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 Power range-detector Reset

u Sleep Mode for power saving

u Four interrupt sources:

-External INT pin

-TMR0 timer

-A/D conversion completion

-PortB<7:4> interrupt on change

u A/D converter module:

-Four analog inputs multiplexed into one A/D

converter

-8-bit resolution

u 4 types of oscillator can be selected by

programming option:

RC－Low cost RC oscillator

LFXT－Low frequency crystal oscillator

XTAL－Standard crystal oscillator

HFXT－High frequency crystal oscillator

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

programmable prescaler

u On-chip RC oscillator based Watchdog

Timer(WDT)

u 13 I/O pins with their own independent

direction control

3. Applications

The application areas of this MDT2051 range from

appliance motor control and high speed automotive

to low power remote transmitters/receivers, pointing

devices, and telecommunications processors, such

as Remote controller, small instruments, chargers,

toy, automobile and PC peripheral … etc.

This specification are subject to be changed without notice. Any latest information please preview

http;//www.mdtic.com.tw

P. 1

2005/6 Ver. 1.9

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