TC74HC257AF - Quad 2-Channel Multiplexer

Toshiba

Download the TC74HC257AF datasheet PDF. This datasheet also covers the TC74HC257 variant, as both devices belong to the same quad 2-channel multiplexer family and are provided as variant models within a single manufacturer datasheet.

Key Features

High speed: tpd = 10 ns (typ. ) at VCC = 5 V.
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C.
High noise immunity: VNIH = VNIL = 28% VCC (min).
Output drive capability: 15 LSTTL loads.
Symmetrical output impedance: |IOH| = IOL =.

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TC74HC257AF quad 2-channel multiplexer by Toshiba - Datasheet Preview — Note: The manufacturer provides a single datasheet file (TC74HC257_Toshiba.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	TC74HC257AF
Manufacturer	Toshiba
File Size	205.95 KB
Description	Quad 2-Channel Multiplexer
Datasheet	TC74HC257AF Datasheet

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Other Datasheets by Toshiba

Part Number	Description
TC74HC257AP	Quad 2-Channel Multiplexer
TC74HC251AF	8-Channel Multiplexer
TC74HC251AP	8-Channel Multiplexer
TC74HC253AF	Dual 4-Channel Multiplexer
TC74HC253AP	Dual 4-Channel Multiplexer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TC74HC257AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC257AP, TC74HC257AF Quad 2-Channel Multiplexer (3-state) The TC74HC257A is high speed CMOS MULTIPLEXER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. It is composed of four independent 2-channel multiplexers with common SELECT and OUTPUT ENABLE ( OE ). If OE is set low, the outputs are held in a high-impedance state. When SELECT is set low, “A” data inputs are enabled. Conversely, when SELECT is high, “B” data inputs are enabled. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features • High speed: tpd = 10 ns (typ.