Part Number
|
5490 |
Manufacturer
|
National Semiconductor |
Description
|
Decade and Binary Counters |
Published
|
Mar 16, 2007 |
Detailed Description
|
DM5490 DM7490A DM7493A Decade and Binary Counters
www.DataSheet4U.com
July 1992
DM5490 DM7490A DM7493A Decade and Bin...
|
Datasheet
|
5490
|
Overview
DM5490 DM7490A DM7493A Decade and Binary Counters
www.
DataSheet4U.
com
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 ...
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