P80C652IFA datasheet(2/24 Pages) PHILIPS

Part #	P80C652IFA

Description	CMOS single-chip 8-bit microcontroller

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Manufacturer	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product specification

83C654

CMOS single-chip 8-bit microcontroller

2

1998 Jan 06

DESCRIPTION

The P83C654 Single-Chip 8-Bit

Microcontroller is manufactured in an

advanced CMOS process and is a derivative

of the 80C51 microcontroller family. The

83C654 has the same instruction set as the

80C51. Two versions of the derivative exist:

83C654 — 16k bytes mask programmable

ROM

87C654 — EPROM version (described in a

separate data sheet)

This device provides architectural

enhancements that make it applicable in a

variety of applications for general control

systems. The 83C654 contains a non-volatile

16k

× 8 read-only program memory, a volatile

256

× 8 read/write data memory, four 8-bit I/O

ports, two 16-bit timer/event counters

(identical to the timers of the 80C51), a

multi-source, two-priority-level, nested

interrupt structure, an I2C interface, UART

and on-chip oscillator and timing circuits. For

systems that require extra capability, the

8XC654 can be expanded using standard

TTL compatible memories and logic.

The device also functions as an arithmetic

processor having facilities for both binary and

BCD arithmetic plus bit-handling capabilities.

The instruction set consists of over 100

instructions: 49 one-byte, 45 two-byte and 17

three-byte. With a 16(24)MHz crystal, 58% of

the instructions are executed in 0.75(0.5)

µs

and 40% in 1.5(1)

µs. Multiply and divide

instructions require 3(2)

µs.

FEATURES

• 80C51 central processing unit

• 16k × 8 ROM expandable externally to

64k bytes

• 256 × 8 RAM, expandable externally to

64k bytes

• Two standard 16-bit timer/counters

• Four 8-bit I/O ports

• I2C-bus serial I/O port with byte oriented

master and slave functions

• Full-duplex UART facilities

• Power control modes

– Idle mode

– Power-down mode

• ROM code protection

• Extended frequency range: 3.5 to 24 MHz

• Three operating ambient temperature

ranges:

0 to +70

°C

–40 to +85

°C

–40 to +125

°C

BLOCK DIAGRAM

64K BYTE BUS

EXPANSION

CONTRTOL

PROG SERIAL PORT

FULL DUPLEX UART

SYNCHRONOUS SHIFT

PROGRAMMABLE I/O

CPU

OSCILLATOR

AND

TIMING

PROGRAM

MEMORY

DATA

MEMORY

(256 x 8 RAM)

TWO 16-BIT

TIMER/EVENT

COUNTERS

I2C SERIAL I/O

SDA

SCL

SHARED

WITH

PORT 1

T0

T1

COUNTERS

XTAL2

XTAL1

FREQUENCY

REFERENCE

INTERNAL

INTERRUPTS

EXTERNAL

INTERRUPTS

CONTROL

PARALLEL PORTS,

ADDRESS/DATA BUS

AND I/O PINS

SERIAL IN

SERIAL OUT

SHARED WITH

PORT 3

(16K x 8 ROM)

INT0

INT1

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