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74F251A - 8-input multiplexer

General Description

The 74F251A is a logic implementation of a single 8-position switch with the switch position controlled by the state of three Select (S0, S1, S2) inputs.

True (Y) and complementary (Y) outputs are both provided.

The output enable (OE) is active Low.

Key Features

  • High speed 8-to-1 multiplexing.
  • On chip decoding.
  • Multifunction capability.
  • Inverting and Non-Inverting outputs.
  • Both outputs are 3-State for further multiplexer expansion.

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📁 Similar Datasheet

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Other Datasheets by Philips Semiconductors (now NXP Semiconductors)

Part Number Description
74F253 Dual 4-bit multiplexer
74F256 Dual addressable latch
74F257A Quad 2-lnput selector/multiplexer
74F258A 2-input selector/multiplexer
74F259 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.

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Philips Semiconductors Product specification 8-input multiplexer (3-State) 74F251A FEATURES • High speed 8-to-1 multiplexing • On chip decoding • Multifunction capability • Inverting and Non-Inverting outputs • Both outputs are 3-State for further multiplexer expansion DESCRIPTION The 74F251A is a logic implementation of a single 8-position switch with the switch position controlled by the state of three Select (S0, S1, S2) inputs. True (Y) and complementary (Y) outputs are both provided. The output enable (OE) is active Low. When OE is High, both outputs are in High impedance state, allowing multiple output connections to a common bus without driving nor loading the bus significantly.