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SN54LS258B Datasheet Quad 2-input Multiplexer

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be selected using a mon Data Select input. The four outputs present the selected data in true (non-inverted) form. The outputs may be switched to a high impedance state with a HIGH on the mon Output Enable (EO) Input, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is pletely patible with all Motorola TTL families. • Schottky Process For High Speed • Multiplexer Expansion By Tying Outputs Together • Non-Inverting 3-State Outputs • Input Clamp Diodes Limit High Speed Termination Effects • Special Circuitry Ensures Glitch Free Multiplexing • ESD > 3500 Volts VCC E0 16 15 CONNECTION DIAGRAM DIP (TOP VIEW) I0c I1c Zc I0d I1d Zd 14 13 12 11 10 9 SN54/74LS257B VCC = PIN 16 GND = PIN 8 1 2 3 4 56 78 S I0a I1a Za I0b I1b Zb GND VCC E0 I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 SN54/74LS258B 1 2 3 4 56 78 S I0a I1a Za I0b I1b Zb GND NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LS257B and LS258B are Quad 2-Input Multiplexers with

Key Features

  • . Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Literature Distribution Centers: USA: Motorola Literature Distribution; P. O. Box 20.

Similar Datasheet

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