DM74LS257, DM74LS258 Datasheet - National Semiconductor

DM74LS257, DM74LS258, TRI-STATE Quad 2-Data Selectors/Multiplexers

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

DM74LS258_NationalSemiconductor.pdf

DM74LS257 Datasheet Preview — This datasheet PDF includes multiple part numbers: DM74LS257, DM74LS258. Please refer to the document for exact specifications by model.

Datasheet Details

Part number:

DM74LS257, DM74LS258

Manufacturer:

National Semiconductor

File Size:

163.71 KB

Description:

TRI-STATE Quad 2-Data Selectors/Multiplexers

Note:

This datasheet PDF includes multiple part numbers: DM74LS257, DM74LS258.
Please refer to the document for exact specifications by model.

Features

* Y Y Y Y Y Y TRI-STATE versions LS157 and LS158 with same pinouts Schottky-clamped for significant improvement in A-C performance Provides bus interface from multiple sources in highperformance systems Average propagation delay from data input 12 ns Typical power dissipation LS257B 50 mW LS258B 3

DM74LS257 Distributors

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DM74LS258 TRI-STATE Quad 2-Data Selectors Multiplexers National Semiconductor

National Semiconductor DM74LS257-like datasheet