87C550 datasheet(2/28 Pages) PHILIPS

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Philips Semiconductors

Product specification

80C550/83C550/87C550

80C51 8-bit microcontroller family

4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

1998 May 01

853-1568 19329

DESCRIPTION

The Philips 8XC550 is a high-performance microcontroller fabricated

with Philips high-density CMOS technology. This Philips CMOS

technology combines the high speed and density characteristics of

HMOS with the low power attributes of CMOS. Philips epitaxial

substrate minimizes latch-up sensitivity. The CMOS 8XC550 has the

same instruction set as the 80C51.

The 8XC550 contains a 4k

× 8 EPROM (87C550)/ROM

(83C550)/ROMless (80C550 has no program memory on-chip), a

128

× 8 RAM, 8 channels of 8-bit A/D, four 8-bit ports (port 1 is input

only), a watchdog timer, two 16-bit counter/timers, a seven-source,

two-priority level nested interrupt structure, a serial I/O port for either

multi-processor communications, I/O expansion or full duplex UART,

and an on-chip oscillator and clock circuits.

In addition, the 8XC550 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.

FEATURES

• 80C51 based architecture

– 4k

× 8 EPROM (87C550)/ROM (83C550)

– 128

× 8 RAM

– Eight channels of 8-bit A/D

– Two 16-bit counter/timers

– Watchdog timer

– Full duplex serial channel

– Boolean processor

• Memory addressing capability

– 64k ROM and 64k RAM

• Power control modes:

– Idle mode

– Power-down mode

• CMOS and TTL compatible

• One speed range at V

CC = 5V ±10%

– 3.5 to 16MHz

• Extended temperature ranges

• OTP package available

ORDERING INFORMATION

ROMless

ROM

EPROM

TEMPERATURE RANGE

°C

AND PACKAGE 1

FREQ

MHz

DRAWING

NUMBER

P80C550EBP N

P83C550EBP N

P87C550EBP N

OTP

0 to +70, Plastic Dual In-Line Package

3.5 to 16

SOT129-1

P80C550EBA A

P83C550EBA A

P87C550EBA A

OTP

0 to +70, Plastic Leaded Chip Carrier

3.5 to 16

SOT187-2

P80C550EFA A

P83C550EFA A

P87C550EFA A

OTP

–40 to +85, Plastic Leaded Chip Carrier

3.5 to 16

SOT187-2

NOTES:

1. OTP = One Time Programmable EPROM.

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