Part Number
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DM74LS161A |
Manufacturer
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Fairchild Semiconductor |
Description
|
Synchronous 4-Bit Binary Counters |
Published
|
Apr 1, 2005 |
Detailed Description
|
DM74LS161A • DM74LS163A Synchronous 4-Bit Binary Counters
August 1986 Revised April 2000
DM74LS161A • DM74LS163A Synch...
|
Datasheet
|
DM74LS161A
|
Overview
DM74LS161A • DM74LS163A Synchronous 4-Bit Binary Counters
August 1986 Revised April 2000
DM74LS161A • DM74LS163A Synchronous 4-Bit Binary Counters
General Description
These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs.
The DM74LS161A and DM74LS163A are 4-bit binary counters.
The carry output is decoded by means of a NOR gate, thus preventing spikes during the normal counting mode of operation.
Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating.
This mode of operation el...
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