1998 May 11

3

Philips Semiconductors

Product specification

8-bit microcontroller

PCF84C12A

1

FEATURES

• Manufactured in silicon gate CMOS process

• 8-bit CPU, ROM, RAM, I/O in a 20-lead package

• 1 kbyte ROM

• 64 byte RAM

• Over 100 instructions (based on MAB8048) all of

1 or 2 cycles

• 13 quasi-bidirectional I/O port lines

• 8-bit programmable timer/event counter 1

• Two single-level vectored interrupts:

– external

– 8-bit programmable timer/event counter 1

• Two test inputs, one of which also serves as the external

interrupt input

• Stop and Idle modes

• Supply voltage: 2.5 to 5.5 V

• Clock frequency: 1 to 16 MHz

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

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GENERAL DESCRIPTION

This data sheet details the specific properties of the

PCF84C12A. 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. Note that the devices

compatibility or derivative logic, so the information given in

the family data sheet about these features can be ignored.

The PCF84C12A is a general purpose CMOS

microcontroller with 1 kbyte of program memory.

It includes 64 bytes of RAM and 13 I/O port lines.

The instruction set is based on the MAB8048 and is a

sub-set of that listed in the

“PCF84CxxxA family” data

sheet.

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ORDERING INFORMATION

Note

1. Please refer to the Order Entry Form (OEF) for these devices for the full type number to use when ordering. This type

number will also specify the required program and ROM mask options.

PACKAGE

NAME

DESCRIPTION

VERSION

PCF84C12AP

DIP20

plastic dual in-line package; 20 leads (300 mil)

SOT146-1

PCF84C12AT

SO20

plastic small outline package; 20 leads; body width 7.5 mm

SOT163-1