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SN74HC251D - Data Selectors/Multiplexers

Download the SN74HC251D datasheet PDF. This datasheet also covers the SN74HC251 variant, as both devices belong to the same data selectors/multiplexers family and are provided as variant models within a single manufacturer datasheet.

General Description

The SNx4HC251 is a data selector/multiplexer containing full binary decoding to select 1of-8 data sources and

Key Features

  • 3-state version of ’HC151.
  • Wide operating voltage range of 2 V to 6 V.
  • High-current 3-state outputs interface directly with system bus or can drive up to 15 LSTTL loads.
  • Low power consumption, 80-μA max ICC.
  • Typical tpd = 9 ns.
  • ±6-mA output drive at 5 V.
  • Low input current of 1 μA max.
  • Perform parallel-to-serial conversion.
  • Complementary outputs provide true and inverted data 2.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN74HC251-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
SN74HC251 Data Selectors/Multiplexers
SN74HC251N Data Selectors/Multiplexers
SN74HC253 Dual 4-Line To 1-Line Data Selectors/Multiplexers
SN74HC253-EP Dual 4-Line To 1-Line Data Selectors/Multiplexers
SN74HC253-Q1 Dual 4-Line To 1-Line Data Selectors/Multiplexers

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
SN54HC251, SN74HC251 SCLS132F – DECEMBER 1982 – REVISED FEBRUARY 2022 SNx4HC251 Data Selectors/Multiplexers With 3-State Outputs 1 Features • 3-state version of ’HC151 • Wide operating voltage range of 2 V to 6 V • High-current 3-state outputs interface directly with system bus or can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • Typical tpd = 9 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Perform parallel-to-serial conversion • Complementary outputs provide true and inverted data 2 Description The SNx4HC251 is a data selector/multiplexer containing full binary decoding to select 1of-8 data sources and features strobe-controlled complementary 3-state outputs.