概述

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 consumption and high
noise immunity. On chip memory includes 4K words of
ROM, and 192 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 EPROM size : 4.0 K words
? Internal RAM size : 224 bytes
(192 general purpose registers, 32 special
registers)
? 37 single word instructions
? 14-bit instructions
? 8-level stacks
? Operating voltage : 2.5 V ~ 5.5V (PRD Disable)
4.5 V ~ 5.5 V (PRD Enable)
? Operating frequency : DC ~ 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
? Power range-detector Reset
? Sleep Mode for power saving
? Capture,Compare,PWM module
? Synchronous serial port with SCM
? 8 interrupt sources:
-External INT pin
-TMR0 timer,TMR1 timer,TMR2 timer
-A/D conversion completion
-PortB<7:4>interrupt on change
-CCP,SCM
? A/D converter module:
-5 analog inputs multiplexed into one A/D
converter
-8-bit resolution
? TMR0 : 8-bit real time clock/counter
TMR1 : 16-bit real time clock/count
TMR2 : 8-bit clock/counter(internal)
? 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
? On-chip RC oscillator based Watchdog
Timer(WDT)
? 22 I/O pins with their own independent direction
control
3. Applications
The application areas of this MDT10P721 range from
appliance motor control and high speed auto-motive to
low  power  remote  transmitters/receivers,  pointing
devices, and telecommunications processors, such as
Remote controller, small instruments, chargers, toy,
automobile and PC peripheral … etc.