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TC74HC251AF - 8-Channel Multiplexer

Download the TC74HC251AF datasheet PDF. This datasheet also covers the TC74HC251 variant, as both devices belong to the same 8-channel multiplexer family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • High speed: tpd = 15 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: 10 LSTTL loads.
  • Symmetrical output impedance: |IOH| = IOL = 4 mA (min).
  • Balanced pro.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TC74HC251_Toshiba.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Toshiba

Part Number Description
TC74HC251AP 8-Channel Multiplexer
TC74HC253AF Dual 4-Channel Multiplexer
TC74HC253AP Dual 4-Channel Multiplexer
TC74HC257AF Quad 2-Channel Multiplexer
TC74HC257AP Quad 2-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.

View original datasheet text
TC74HC251AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC251AP, TC74HC251AF 8-Channel Multiplexer (3-state) The TC74HC251A is a high speed CMOS 8-CHANNEL MULTIPLEXER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. One of eight date input signals (D0-D7) is selected by decoding of the address input (A, B, C). The selected data appears on two outputs; non-inverting (Y) and inverting (W). When the strobe input is held high, both outputs are in the high-impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features • High speed: tpd = 15 ns (typ.