8254 Просмотр технического описания (PDF) - Intel

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производитель

8254

PROGRAMMABLE INTERVAL TIMER

Intel 

8254

PROGRAMMABLE INTERVAL TIMER

Y Compatible with All Intel and Most

Other Microprocessors

Y Handles Inputs from DC to 10 MHz

8 MHz 8254

10 MHz 8254-2

Y Status Read-Back Command

Y Six Programmable Counter Modes

Y Three Independent 16-Bit Counters

Y Binary or BCD Counting

Y Single a5V Supply

Y Available in EXPRESS

Standard Temperature Range

The Intel 8254 is a counter timer device designed to solve the common timing control problems in microcom-

puter 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 8254 is a superset of the 8253

The 8254 uses HMOS technology and comes in a 24-pin plastic or CERDIP package

231164 – 2

Figure 2 Pin Configuration

Figure 1 8254 Block Diagram

231164 – 1

September 1993

Order Number 231164-005

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