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CD74HC251E - 8-Input Multiplexer

Download the CD74HC251E datasheet PDF. This datasheet also covers the CD74HC251 variant, as both devices belong to the same 8-input multiplexer family and are provided as variant models within a single manufacturer datasheet.

Description

The ’HC251 and ’HCT251 are 8-channel digital multiplexers with three-state outputs, fabricated with high-speed silicongate CMOS technology.

Together with the low power consumption of standard CMOS integrated circuits, they possess the ability to drive 10 LSTTL loads.

Features

  • Selects one of eight binary data inputs.
  • Three-state output capability.
  • True and complement outputs.
  • Typical (data to output) propagation delay of 14 ns at VCC = 5 V, CL = 15 pF, TA = 25 ℃.
  • Fanout (over temperature range).
  • Standard outputs : 10 LSTTL loads.
  • Bus driver outputs : 15 LSTTL loads.
  • Wide operating temperature range :.
  • 55 ℃ to 125 ℃.
  • Balanced propagation delay and transition times.
  • Signi.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CD74HC251-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
CD74HC251 8-Input Multiplexer
CD74HC251M 8-Input Multiplexer
CD74HC253 Dual 4-Input Multiplexer
CD74HC253E Dual 4-Input Multiplexer
CD74HC253M Dual 4-Input 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.

View original datasheet text
CD54HC251, CD74HC251, CD54HCT251, CD74HCT251 SCHS169D – NOVEMBER 1998 – REVISED MARCH 2022 CDx4HC251, CDx4HCT251 High-Speed CMOS Logic 8-Input Multiplexer, Three-State 1 Features • Selects one of eight binary data inputs • Three-state output capability • True and complement outputs • Typical (data to output) propagation delay of 14 ns at VCC = 5 V, CL = 15 pF, TA = 25 ℃ • Fanout (over temperature range) – Standard outputs : 10 LSTTL loads – Bus driver outputs : 15 LSTTL loads • Wide operating temperature range : – 55 ℃ to 125 ℃ • Balanced propagation delay and transition times • Significant power reduction compared to LSTTL logic ICs • Alternate source is Philips • HC types – 2 V to 6 V operation – High noise immunity : NIL = 30 %, NIH = 30% of VCC at VCC = 5 V • HCT types – 4.5 V to 5.
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