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The SN74HC244N from Texas Instruments is an octal buffer and line driver designed for improved performance and density in 3-state memory address drivers, clock drivers, and bus-oriented systems. This device features two 4-bit buffers and drivers, each with separate output-enable inputs.
Key electrical characteristics include a wide operating voltage range of 2V to 6V, a typical propagation delay of 11 ns, and high-current outputs capable of driving up to 15 LSTTL loads. It also offers low power consumption with a maximum ICC of 80 µA and low input current of 1 µA.
The SN74HC244N is packaged in a 20-pin PDIP and designed for through-hole mounting. Its 3-state outputs allow it to drive bus lines or buffer memory address registers effectively. When the output enable is low, data passes noninverted from the A inputs to the Y outputs; when high, the outputs are in a high-impedance state.
This buffer/line driver is suitable for applications such as servers, LED displays, network switches, telecom infrastructure, motor drivers, and I/O expanders.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.33 | $0.33 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
2V to 6V.
20-DIP (0.300", 7.62mm) through-hole.
-40°C to 125°C.
±6mA at 5V typical, up to 15 LSTTL loads.
11 ns typical.
80 µA maximum.