PCF84C85AT PHILIPS [NXP Semiconductors], PCF84C85AT Datasheet - Page 3

• Manufacturer Part Number: PCF84C85AT
• Description: Microcontroller with extended I/O
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1
3
Note
1. Please refer to the Order Entry Form (OEF) for this device for the full type number to use when ordering. This type
1996 Nov 21
PCF84C85AP
PCF84C85AT
8-bit CPU, ROM, RAM, I/O in a single 40-lead package
8 kbytes ROM
256 bytes RAM
I
Over 100 instructions (based on MAB8048)
all of 1 or 2 cycles
32 quasi-bidirectional I/O port lines
8-bit programmable timer/event counter 1
– external
– 8-bit programmable timer/event counter 1
– I
Two test inputs, one of which also serves as the external
interrupt input
Stop and Idle modes
Logic supply voltage: V
Clock frequency: 1 to 16 MHz
Operating temperature: 40 to +85 C
Manufactured in silicon gate CMOS process.
Microcontroller with extended I/O
2
Three single-level vectored interrupts:
NUMBER
C-bus interface with multi-master capability
number will also specify the required program and the ROM mask options.
FEATURES
ORDERING INFORMATION (see note 1)
TYPE
2
C-bus
VSO40
NAME
DIP40
DD
= 2.5 to 5.5 V
plastic dual in-line package; 40 leads (600 mil)
plastic very small outline package; 40 leads
DESCRIPTION
3
2
This data sheet details the specific properties of the
PCF84C85A. The shared properties of the PCF84CxxxA
family of microcontrollers are described in the
“PCD84xxxA family” data sheet which should be read in
conjunction with this publication.
The PCF84C85A is a general purpose CMOS
microcontroller with emphasis on input/output. It provides
32 I/O port lines, 8 kbytes of program memory and
256 bytes of RAM. In addition to the 32 I/O port lines, the
microcontroller provides an on-chip I
two-line serial bus extends the microcontroller's
capabilities when implemented with the powerful I
peripherals.These include LCD drivers, telecom circuits,
AD/DA converters, clock/calendar circuits, EEPROM and
RAM and are listed in “Data Handbook IC12, I
Peripherals” .
The instruction set is based on that of the MAB8048 and is
a sub-set of that listed in the “PCF84CXXXA family” data
sheet.
PACKAGE
GENERAL DESCRIPTION
2
PCF84C85A
C-bus interface. This
Product specification
SOT 129-1
SOT 158-1
VERSION
2
C
2
C-bus