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MC74AC251 - 8-Input Multiplexer

Download the MC74AC251 datasheet PDF. This datasheet also covers the MC74ACT251 variant, as both devices belong to the same 8-input multiplexer family and are provided as variant models within a single manufacturer datasheet.

General Description

This device is a logical implementation of a single-pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2.

Both true and complementary outputs are provided.

The Output Enable input (OE) is active LOW.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MC74ACT251_Motorola.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MC74AC253 DUAL 4-INPUT MULTIPLEXER ON Semiconductor
MC74AC257 QUAD 2-INPUT MULTIPLEXER ON Semiconductor
MC74AC259 8-BIT ADDRESSABLE LATCH ON Semiconductor
MC74AC20 Dual 4-Input NAND Gate ON Semiconductor
MC74AC240 Octal Buffer/Line Driver ON Semiconductor

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC74AC253 DUAL 4-INPUT MULTIPLEXER
MC74AC256 DUAL 4-BIT ADDRESSABLE LATCH
MC74AC257 QUAD 2-INPUT MULTIPLEXER
MC74AC258 QUAD 2-INPUT MULTIPLEXER
MC74AC259 8-BIT ADDRESSABLE LATCH

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.

View original datasheet text
( DataSheet : www.DataSheet4U.com ) MC74AC251 MC74ACT251 8ĆInput Multiplexer with 3ĆState Outputs The MC74AC251/74ACT251 is a high-speed 8-input digital multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. It can be used as a universal function generator to generate any logic function of four variables. Both true and complementary outputs are provided.