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CD54HC257 - Quad 2-Input Multiplexer

Datasheet Summary

Description

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

The Output Enable input (OE) is active LOW.

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.

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Datasheet preview – CD54HC257

Datasheet Details

Part number CD54HC257
Manufacturer Texas Instruments
File Size 483.76 KB
Description Quad 2-Input Multiplexer
Datasheet download datasheet CD54HC257 Datasheet
Additional preview pages of the CD54HC257 datasheet.

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Full PDF Text Transcription

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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 Outputs [ /Title (CD74 HC257 , CD74 HCT25 7) /Subject (High Speed CMOS Logic Quad 2-Input Multiplexer 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 . . .
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