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CD54HC257 Datasheet Quad 2-input Multiplexer

Manufacturer: Texas Instruments

Overview: Data sheet acquired from Harris Semiconductor SCHS171D November 1997 - Revised October 2003 CD54HC257, CD74HC257, CD54HCT257, CD74HCT257 High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting.

General Description

The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a mon Select Input (S).

The Output Enable input (OE) is active LOW.

When OE is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of all other input conditions.

Key Features

  • Buffered Inputs.
  • Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC.
  • Fanout (Over Temperature Range) - Standard Outputs.
  • 10 LSTTL Loads - Bus Driver Outputs.
  • . . . 15 LSTTL Loads.
  • Wide Operating Temperature Range . . . -55oC to 125oC.
  • Balanced Propagation Delay and Transition Times.
  • Significant Power Reduction Compared to LSTTL Logic ICs.
  • HC Types - 2V to 6V.

More Datasheets from Texas Instruments

Part Number Description
CD54HC251 8-Input Multiplexer
CD54HC251F 8-Input Multiplexer
CD54HC259 8-Bit Addressable Latch
CD54HC20 Dual 4-Input NAND Gates
CD54HC20F Dual 4-Input NAND Gates
CD54HC21 Dual 4-Input AND Gates
CD54HC21F Dual 4-Input AND Gates
CD54HC221 Dual Monostable Multivibrator
CD54HC237 High-Speed CMOS Logic 3 to 8-Line Decoder/Demultiplexer
CD54HC238 High-Speed CMOS Logic 3 to 8-Line Decoder/Demultiplexer Inverting/Noninverting

CD54HC257 Distributor