| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,001 pcs
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3001 pcs | On Request | 1 | On Request | On Request | 0206+ | On Request | On Request |
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The DM74LS191N from ON Semiconductor is a synchronous, 4-bit, up/down counter designed for digital logic applications. It features synchronous operation, meaning all flip-flops are clocked simultaneously, eliminating output counting spikes. The counter is controlled by a single down/up input line and a count enable input.
Key electrical specifications include an operating voltage range of 4.75V to 5.25V and a typical clock frequency of 20 MHz. The average propagation delay is 20 ns. The device is designed for through-hole mounting and comes in a 16-PDIP package.
This counter is fully programmable, allowing outputs to be preset to any level via the load input and data inputs, independent of the clock. This feature enables its use as modulo-N dividers. The DM74LS191N is suitable for applications requiring binary counting with reversible direction control.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.50 | $0.50 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage for the DM74LS191N is between 4.75V and 5.25V.
The DM74LS191N operates within a temperature range of 0°C to 70°C.
The DM74LS191N is a synchronous, 4-bit, up/down binary counter.
The DM74LS191N is available in a 16-PDIP package for through-hole mounting.
The DM74LS191N has a count rate of 20 MHz.