HD74LS257 - Quadruple 2-line-to-1-line Data Selectors/Multiplexers

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Renesas

Part number	HD74LS257
Manufacturer	Renesas
File Size	167.17 KB
Description	Quadruple 2-line-to-1-line Data Selectors/Multiplexers
Datasheet	HD74LS257 Datasheet
Additional preview pages of the HD74LS257 datasheet.

three-state outputs that can interface directly with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state) the low impedance of the single enabled output will drive the bus line to a high or low logic level. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the outputenable circuitry is designed such that the output disable times are shorter than the output enable times.

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Published: Dec 4, 2017 |