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DM7490A Datasheet, National Semiconductor

DM7490A counters equivalent, decade and binary counters.

DM7490A Avg. rating / M : 1.0 rating-11

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DM7490A Datasheet

Features and benefits

Y Typical power dissipation 90A 145 m.

Application

To use their maximum count length (decade or four-bit binary) the B input is connected to the QA output The input count .

Description

Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divideby-eight for the .

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