| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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12 pcs
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12 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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3 pcs
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3 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The SN54HC191J from Texas Instruments is a 4-bit synchronous binary counter designed for reversible counting operations. It features synchronous counting, meaning all flip-flops are clocked simultaneously, eliminating output counting spikes common in asynchronous counters. The direction of the count (up or down) is controlled by a dedicated input line.
This counter operates across a wide voltage range of 2V to 6V and is specified for a military temperature range of -55°C to 125°C. Key electrical characteristics include a typical propagation delay of 13 ns and an output drive capability of up to 10 LSTTL loads. The device consumes low power, with a maximum Icc of 80 μA and a low input current of 1 μA.
Designed for through-hole mounting, the SN54HC191J comes in a 16-CDIP package. Its features, such as balanced outputs and positive input clamp diodes, make it suitable for various digital logic applications requiring precise and synchronous counting.
| Qty | Low | High |
|---|---|---|
| 1+ | $10.59 | $10.59 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The SN54HC191J operates from 2V to 6V.
The operating temperature range is -55°C to 125°C.
The SN54HC191J is available in a 16-CDIP (0.300", 7.62mm) through-hole package.
The maximum count rate is 48 MHz.
The typical propagation delay is 13 ns.