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PCF84C00T

8-bit microcontroller with I2C-bus interface

Philips Electronics 

Philips Semiconductors

8-bit microcontroller with I2C-bus interface

Product specification

PCF84C00

1 FEATURES

• Manufactured in silicon gate CMOS process

• 8-bit CPU, RAM, I/O in a single 28-lead or 56-lead

package

• ‘Piggy-back’ and ROM-less versions, external program

memory

• 256 × 8 RAM

• 20 quasi-bidirectional I/O port lines

• Two test inputs, one of which is also the external

interrupt input

• Three single-level vectored interrupts:

– external

– timer/event counter

– I2C-bus

• I2C-bus interface for serial data transfer on two lines

(serial I/O data via an existing port line and clock via a

dedicated line)

• 8-bit programmable timer/event counter

• Clock frequency range: 100 kHz to 10 MHz

• Over 80 instructions (similar to those of the MAB8048)

all of 1 or 2 cycles

• Single supply voltage (2.5 to 5.5 V)

• Stop and Idle modes

• Power-on reset circuit

• Operating temperature range: −40 to +85 °C.

2 GENERAL DESCRIPTION

This data sheet details the specific properties of the

PCF84C00. The shared properties of the PCF84CxxxA

family of microcontrollers are described in the

“PCF84CxxxA family” data sheet, which should be read in

conjunction with this publication.

The PCF84C00 has 20 quasi-bidirectional I/O lines, an

I2C-bus serial interface, a single-level vectored interrupt

structure, an 8-bit timer/event counter and on-chip clock

oscillator and clock circuits.

This efficient controller also performs well as an arithmetic

processor. It has facilities for both binary and BCD

arithmetic plus bit-handling capabilities.

The instruction set is similar to the MAB8048 and is a

sub-set of that listed in the “PCF84CxxxA family” data

sheet.

3 ORDERING INFORMATION

TYPE

NUMBER

PCF84C00B

PCF84C00T

PACKAGE

NAME

DESCRIPTION

−

VSO56

Non-standard 28-lead ‘piggy-back’ package with 28-pin EPROM socket

on top. Bottom ‘footprint’ and pinning as DIP 28, version SOT117-1.

The SOT117-1 information provided in Chapter “Package Outlines” is

correct in these respects, but not for the physical size of the

PCF84C00B, which is larger than the SOT117-1 package.

Plastic very small outline package; 56 leads.

VERSION

−

SOT 190-1

1996 Nov 25

3

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