Part Number
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DM5490 |
Manufacturer
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National Semiconductor |
Description
|
Decade and Binary Counters |
Published
|
Apr 1, 2005 |
Detailed Description
|
DM5490 DM7490A DM7493A Decade and Binary Counters
July 1992
DM5490 DM7490A DM7493A Decade and Binary Counters
General ...
|
Datasheet
|
DM5490
|
Overview
DM5490 DM7490A DM7493A Decade and Binary Counters
July 1992
DM5490 DM7490A DM7493A Decade and Binary Counters
General 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 93A All of these counters have a gated zero reset and the 90A also has gated set-to-nine inputs for use in BCD nine’s complement applications To use their maximum count length (decade or four-bit binary) the B input is connected to the QA output The input count pulses are applied to input A and the outputs are as des...
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