54LS257A Datasheet - National Semiconductor

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

Obsolete 54LS257A DM54LS257B DM74LS257B 54LS258A DM54LS258B DM74LS258B TRI-STATE Quad 2-Data Selectors Multiplexers June 1989 54LS257A DM54LS257B D.
These Schottky-clamped high-performance multiplexers feature TRI-STATE outputs that can interface directly with data lines of bus-organized systems Wi.

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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

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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54LS257A TRI-STATE Quad 2-Data Selectors Multiplexers National Semiconductor

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