描述 Description

The CXP82220/82224 is a CMOS 8-bit single chip microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter, time base timer, capture timer/counter, fluorescent display tube controller/driver, remote control reception circuit, CTL duty detection circuit, 14-bit PWM output, high-speed output circuit and other servo systems besides the basic configurations of 8-bit CPU, PROM, RAM, and I/O port.

The CXP82220/82224 also provides power-on reset function and sleep/stop function that enables lower power consumption.

特性 Features

? Wide-range instruction system (213 instructions) to cover various types of data

— 16-bit arithmetic/multiplication and division/Boolean bit operation instructions

? Minimum instruction cycle 400ns at 10MHz operation

122μs at 32kHz operation

? Incorporated ROM capacity 20K bytes (CXP82220)

24K bytes (CXP82224)

? Incorporated RAM capacity 704 bytes (including fluorescent display area)

? Peripheral functions

— A/D converter 8 bits, 8 channels, successive approximation method

(Conversion time of 32μs/10MHz)

— Serial interface SIO with 8-bit, 8-stage FIFO incorporated for data use

(Auto transfer for 1 to 8 bytes), 1 channel

8-bit standard SIO, 1 channel

— Timer 8-bit timer, 8-bit timer/counter, 19-bit time base timer

16-bit capture timer/counter, 32kHz timer/counter

— Fluorescent display tube controller/driver Maximum of 384 segment display possible

1 to 16-digit dynamic display

Dimmer function

High voltage drive output (40V)

Incorporated pull-down resistor (Mask option)

Hardware key scan function

Maximum of 16 × 8 key matrix compatible

— Remote control reception circuit Incorporated noise elimination circuit

Incorporated 8-bit, 6-stage FIFO for measurement data

— PWM output circuit 14 bits, 1 channel

— CTL duty detection circuit

— High-speed output circuit Precision of 800ns at 10MHz, 4 outputs

? Interruption 19 factors, 15 vectors, multi-interruption possible

? Standby mode Sleep/stop

? Package 100-pin plastic QFP

? Piggyback/evaluation chip CXP82200 100-pin ceramic QFP