Datasheet4U Logo Datasheet4U.com

TC74HC257AF Datasheet Quad 2-channel Multiplexer

Manufacturer: Toshiba

Overview: TC74HC257AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC257AP, TC74HC257AF Quad 2-Channel Multiplexer (3-state) The TC74HC257A is high speed CMOS MULTIPLEXER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. It is composed of four independent 2-channel multiplexers with common SELECT and OUTPUT ENABLE ( OE ). If OE is set low, the outputs are held in a high-impedance state. When SELECT is set low, “A” data inputs are enabled. Conversely, when SELECT is high, “B” data inputs are enabled. All inputs are equipped with protection circuits against static discharge or transient excess voltage.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Key Features

  • High speed: tpd = 10 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: 15 LSTTL loads.
  • Symmetrical output impedance: |IOH| = IOL =.

More Datasheets from Toshiba

Part Number Description
TC74HC257AP Quad 2-Channel Multiplexer
TC74HC251AF 8-Channel Multiplexer
TC74HC251AP 8-Channel Multiplexer
TC74HC253AF Dual 4-Channel Multiplexer
TC74HC253AP Dual 4-Channel Multiplexer
TC74HC259AF 8-Bit Addressable Latch
TC74HC259AP 8-Bit Addressable Latch
TC74HC20AF DUAL 4-INPUT NAND GATE
TC74HC20AP DUAL 4-INPUT NAND GATE
TC74HC21AF Dual 4-Input AND Gate

TC74HC257AF Distributor