| Part number | SNJ54HC191FK, SNJ54HC191J |
|---|---|
| Manufacturer | Texas Instruments ↗ |
| File Size | 1.09 MB |
| Description | 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS |
| Datasheet |
 SNJ54HC191J-etcTI.pdf
|
| Note |
This datasheet PDF includes multiple part numbers: SNJ54HC191FK, SNJ54HC191J. Please refer to the document for exact specifications by model. |
ordering information The ’HC191 devices are 4-bit synchronous, reversible, up/down binary counters.Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when instructed by the steering logic.This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.The outputs of the four flip-flops are triggered on a low- to high-level transition of the c
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