Datasheet > 87C524

87C524

更新时间： 2022-12-11 19:23:03

品牌	Logo	应用领域
恩智浦 - NXP		微控制器
页数	文件大小	规格书
26页	190K
描述
80C51 8-bit microcontrollers 16K/32K, 512 OTP, I2C, watchdog timer

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87C524 数据手册

Philips Semiconductors

Product specification

80C51 8-bit microcontrollers

87C524/87C528

16K/32K, 512 OTP, I²C, watchdog timer

FEATURES

• 80C51 instruction set

– 512 × 8 RAM

– Memory addressing capability

64k ROM and 64k RAM

– Three 16-bit counter/timers

– On-chip watchdog timer with oscillator

– Full duplex UART

– I C serial interface

DESCRIPTION

• Power control modes:

– Idle mode

The 87C528 single-chip 8-bit microcontroller is manufactured in an

advanced CMOS process and is a derivative of the 80C51

microcontroller family. The 87C528 has the same instruction set as

the 80C51. Three versions of the derivative exist:

– Power-down mode

– Warm start from power-down

• 83C528—32k bytes ROM

• 83C524—16k bytes ROM

• 80C528—ROMless version of the 83C528

• 87C528—32k bytes EPROM

• 83C524—16k bytes EPROM

• CMOS and TTL compatible

• Extended temperature ranges

• EPROM code protection

• OTP package available

• 16 MHz speed at V = 5 V

This device provides architectural enhancements that make it

applicable in a variety of applications in consumer, telecom and

general control systems, especially in those systems which need

large ROM and RAM capacity on-chip.

The 87C528 contains a 32k × 8 EPROM and the 87C524 contains a

16k x 8 EPROM. Both devices have a 512 × 8 RAM, four 8-bit I/O

ports, two 16-bit timer/event counters (identical to the timers of the

80C51), a 16-bit timer (identical to the timer 2 of the 80C52), a

watchdog timer with a separate oscillator, a multi-source,

two-priority-level, nested interrupt structure, two serial interfaces

(UART and I C-bus), and on-chip oscillator and timing circuits.

In addition, the 87C524/87C528 has two software selectable modes

of power reduction—idle mode and power-down mode. The idle

mode freezes the CPU while allowing the RAM, timers, serial port,

and interrupt system to continue functioning. The power-down mode

saves the RAM contents but freezes the oscillator, causing all other

chip functions to be inoperative.

ORDERING INFORMATION

TEMPERATURE C RANGE

FREQ

(MHz)

Drawing

Number

EPROM

AND PACKAGE

P87C528EBP N

P87C528EBA A

P87C528EBB B

P87C528EFP N

P87C528EFB B

P87C524EBA A

0 to +70, Plastic Dual In-line Package

SOT129-1

SOT187-2

SOT307-2

SOT129-1

SOT307-2

SOT187-2

SOT307-2

0 to +70, Plastic Leaded Chip Carrier

0 to +70, Plastic Quad Flat Pack

–40 to +85, Plastic Dual In-line Package

–40 to +85, Plastic Quad Flat Pack

0 to +70, Plastic Leaded Chip Carrier

0 to +70, Plastic Quad Flat Pack

P87C524EBB B

NOTE:

1. For ROM & ROMless devices, see data sheet P8X524/528.

1999 Jul 23

853-1687 22041

123 4 5 6 7...26

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