N82C542 Intel Corporation, N82C542 Datasheet

N82C542

Manufacturer Part Number

N82C542

Description

PLCC28

Manufacturer

Intel Corporation

Datasheet

1.N82C542.pdf (18 pages)

Specifications of N82C542

Date_code

08+

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Download datasheet (240Kb)

The Intel 82C54 is a high-performance CHMOS version of the industry standard 8254 counter timer which is

designed to solve the timing control problems common in microcomputer system design It provides three

independent 16-bit counters each capable of handling clock inputs up to 10 MHz All modes are software

programmable The 82C54 is pin compatible with the HMOS 8254 and is a superset of the 8253

Six programmable timer modes allow the 82C54 to be used as an event counter elapsed time indicator

programmable one-shot and in many other applications

The 82C54 is fabricated on Intel’s advanced CHMOS III technology which provides low power consumption

with performance equal to or greater than the equivalent HMOS product The 82C54 is available in 24-pin DIP

and 28-pin plastic leaded chip carrier (PLCC) packages

Compatible with all Intel and most

other microprocessors

High Speed ‘‘Zero Wait State’’

Operation with 8 MHz 8086 88 and

80186 188

Handles Inputs from DC

Available in EXPRESS

October 1994

10 MHz for 82C54-2

Standard Temperature Range

Extended Temperature Range

Figure 1 82C54 Block Diagram

CHMOS PROGRAMMABLE INTERVAL TIMER

231244 –1

82C54

Three independent 16-bit counters

Low Power CHMOS

Completely TTL Compatible

Six Programmable Counter Modes

Binary or BCD counting

Status Read Back Command

Available in 24-Pin DIP and 28-Pin PLCC

frequency

PLASTIC LEADED CHIP CARRIER

Diagrams are for pin reference only

Figure 2 82C54 Pinout

Package sizes are not to scale

10 mA

8 MHz Count

Order Number 231244-006

231244 –3

231244 –2

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