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1,000 pcs
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1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The SN74HC191D is a 4-bit synchronous, reversible, up/down binary counter manufactured by Texas Instruments. It is designed for applications requiring precise counting in both ascending and descending directions.
Key electrical characteristics include a wide operating voltage range from 2V to 6V, a maximum quiescent current of 80 μA, and a typical propagation delay of 13 ns. The counter supports a count rate of up to 24 MHz and features outputs capable of driving up to 10 LSTTL loads. Its synchronous counting operation ensures that all flip-flops are clocked simultaneously, eliminating output counting spikes.
The device is available in a 16-SOIC package, suitable for surface mount applications. The operating temperature range is -40°C to 85°C, making it suitable for various environmental conditions. The SN74HC191D is designed with a single down/up count-control line and includes look-ahead circuitry to enhance the speed of cascaded counters.
This counter is ideal for digital systems that require sequential counting, frequency division, or control functions. Its versatility in counting direction and synchronous operation makes it a valuable component in digital logic designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.36 | $0.36 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 2V to 6V.
The package is 16-SOIC (0.154", 3.90mm Width).
The operating temperature range is -40°C to 85°C.
The maximum count rate is 24 MHz.
The logic type is Binary Counter.
The trigger type is Positive Edge.