Description

The CXP87452/87460 is a CMOS 8-bit micro-

computer which consists of A/D converter, serial

interface (2ch independently), timer/counter, time

base timer, vector interruption, high precision timing

pattern generation circuit (PPG 2ch independently,

RTG 2ch independently), PWM generator, general

purpose prescaler, PWM for tuner, VCR vertical

sync separation circuit and the measuring circuit

which measure signals of capstan FG and drum

FG/PG and other servo systems, as well as basic

configurations like 8-bit CPU, ROM, RAM and I/O

port. They are integrated into a single chip.

Also CXP87452/87460 provides power on reset

function, sleep/stop function which enables to lower

power consumption .

Features

• A wide instruction set (213 instructions) which cover various types of data

— 16-bit arithmetic instruction/multiplication and division instructions/boolean bit operation instruction

• Minimum instruction cycle

During operation 333ns/12MHz (3.0 to 5.5V)

During operation 250ns/16MHz (4.5 to 5.5V)

• Incorporated ROM capacity

52K bytes (CXP87452)

60K bytes (CXP87460)

• Incorporated RAM capacity

1568 bytes

• Peripheral functions

— A/D converter

8-bit, 12-channel, successive approximation system

(Conversion time: 20µs/16MHz)

— Serial interface

Incorporated buffer RAM (1 to 32 bytes auto transfer) 1-channel

Incorporated 8-bit and 8-stage FIFO

(1 to 8 bytes auto transfer) 1-channel

— Timer

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

— High precision timing pattern generator

PPG 19 pins 32-stage programmable

PPG 10 pins 21-stage programmable

RTG 5 pins 2-channel

— PWM/DA gate output

PWM 12-bit, 2-channel (Repetitive frequency 62.5kHz/16MHz)

DA gate pulse 12-bit, 4-channel

— Servo input control

Capstan FG, Drum FG/PG, CTL input

— VSYNC separator

— FRC capture unit

Incorporated 26-bit and 8-stage FIFO

— PWM output

14-bit, 1-channel

— General purpose prescaler

10-bit (System clock asynchronous)

— Pulse cycle measurement circuit

• Interruption

18 factors, 14 vectors, multi-interruption possible

• Standby mode

SLEEP/STOP

• Package

100-pin plastic QFP/LQFP

• Piggyback/evaluation chip

CXP87400 100-pin ceramic QFP/LQFP

Structure

Silicon gate CMOS IC

– 1 –

CXP87452/87460

E95111-PS

CMOS 8-bit Single Chip Microcomputer

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any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

100 pin QFP (PIastic)

100 pin LQFP (PIastic)