N82C542 Intel Corporation, N82C542 Datasheet

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N82C542

Manufacturer Part Number
N82C542
Description
PLCC28
Manufacturer
Intel Corporation
Datasheet

Specifications of N82C542

Date_code
08+

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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
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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
I
frequency
CC
e
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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