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INS8253

Part Number	INS8253
Manufacturer	National Semiconductor
Description	Programmable Interval Timer
Published	Apr 12, 2024
Detailed Description	~National ~ Semiconductor Preliminary JULY 1978 INS8253 Programmable Interval Timer General. Description The INS8253 ...
Datasheet	INS8253 PDF File

Overview

...is a programmable timer/counter device contained in a standard, 24-pin dual-in-line package.
The chip, which is fabricated using N-channel silicon gate technology, provides counting or time-out services in a microcomputer system.
The various operating modes and other functional characteristics of thelNS8253 are programmed by the system software.
The INS8253 provides three independent 16-bit down counters, each of which is capable of count rates in the range DC to 2MHz.
Through software initialization, each counter can be made to operate in anyone of six modes.
The modulus and counting system used are also specified by system software.
The operating characteristics of any individual counter c...

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