CD54HCT257 datasheet, multiplexer equivalent, Texas Instruments

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Features and benefits

* Buffered Inputs
* Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC
* Fanout (Over Temperature Range) - Standard Outputs ..

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. When OE is HIGH, all of the outputs (1Y-4Y) are in the hi.

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