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54LS257A Datasheet - National Semiconductor

54LS257A-NationalSemiconductor.pdf

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Datasheet Details

Part number:

54LS257A

Manufacturer:

National Semiconductor

File Size:

360.47 KB

Description:

Tri-state quad 2-data selectors/multiplexers.

54LS257A, TRI-STATE Quad 2-Data Selectors/Multiplexers

54LS257A Features

* Y TRI-STATE versions LS157 and LS158 with same pinouts Y Schottky-clamped for significant improvement in A-C performance Y Provides bus interface from multiple sources in highperformance systems Y Average propagation delay from data input 12 ns Y Typical power dissipation LS257B 50 mW LS258B 35 mW Y

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