描述 Description

The CXP85324A/85332A/85340A are a highly integrated microcomputers composed of a 8-bit CPU, ROM, RAM, and I/O ports. These chips feature many other high-performance circuits in a single-chip CMOS design, including an A/D converter, serial interface, timer/counter, time-base timer, on-screen display function, I2C bus interface, PWM output, remote control reception circuit, HSYNC counter, power supply frequency counter, and watchdog timer.

Futhermore, the CXP85324A/85332A/85340A series provides power-on reset and sleep functions which enable to lower power consumption.

特性 Features

? A wide instruction set (213 instructions) which covers various types of data

– 16-bit operation/multiplication and division/Boolean bit operation instructions

? Minimum instruction cycle

1μs at 4MHz (4MHz version)

0.5μs at 8MHz (8MHz version)

? Incorporated ROM capacity 24K bytes (CXP85324A)

32K bytes (CXP85332A)

40K bytes (CXP85340A)

? Incorporated RAM capacity 576 bytes

? Peripheral functions

– A/D converter 8-bit, 4-channel successive approximation method

(Conversion time of 40μs at 4MHz and 8MHz)

– Serial interface 8-bit clock sync type, 1 channel

– Timer

8-bit timer

8-bit timer/counter

19-bit time-base timer

– On screen display (OSD) function

12 × 18 dots, 256 character types, 15 character colors,

12 lines of 21 characters,

black frame output/half blanking, shadow, background

color on full screen/half blanking,

double scanning, jitter elimination circuit

– I2C bus interface

– PWM output

14 bits, 1 channel

8 bits, 8 channels

– Remote control reception circuit 8-bit pulse measurement circuit, 6-state FIFO

– HSYNC counter

– Power supply frequency counter

– Watchdog timer

? Interruption 14 factors, 14 vectors, multi-interruption possible

? Standby mode SLEEP

? Package 64-pin plastic SDIP/QFP

? Piggyback/evaluator

CXP85300A 64-pin ceramic PSDIP/PQFP

CXP85390 64-pin ceramic PSDIP (accommodates custom font)