Datasheet Details
| Part number | DM74LS191 |
|---|---|
| Manufacturer | Fairchild (now onsemi) |
| File Size | 70.93 KB |
| Description | Synchronous 4-Bit Up/Down Counter |
| Datasheet |
 DM74LS191 Datasheet
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General Description
The DM74LS191 circuit is a synchronous, reversible, up/ down counter.
Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so instructed by the steering logic.
Key Features
- s Counts binary s Single down/up count control line s Count enable control input s Ripple clock output for cascading s Asynchronously presettable with load control s Parallel outputs s Cascadable for n-bit.
