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7490A Datasheet DECADE COUNTER

Manufacturer: Unknown Manufacturer

Datasheet Details

Part number 7490A
Manufacturer Unknown Manufacturer
File Size 302.31 KB
Description DECADE COUNTER
Datasheet download datasheet 7490A Datasheet

General Description

— The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby-five counter.

It can be connected to operate with a conventional BCD out­ put pattern or it can be connected to provide a 50% duty cycle output.

In the BCD mode, HIGH signals on the Master Set (MS) inputs set the outputs to BCD nine.

Overview

54/7490A 54LS/74LS90 DECADE COUNTER 90 CONNECTION DIAGRAM PINOUT.