INS8253 Datasheet (National Semiconductor) - Programmable Interval Timer

INS8253, Programmable Interval Timer

The INS8253 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 character

INS8253 Features

* 3 Individually Programmable 16-Bit Counters

* 6 Operating Modes

* DC to 2MHz Count Rates

* Individual Count Rate and Modulus for Each Counter

* Selectable Counting System (Binary or BCD) for Each Counter

* TRI-STATE@ TTL Drive Capability for Bidirect