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74AS257

Part Number	74AS257
Manufacturer	Fairchild Semiconductor
Description	3-STATE Quad 1 of 2 Line Data Selector/Multiplexers
Published	Mar 6, 2017
Detailed Description	DM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers September 1986 Revised March 2000 DM74AS257 ...
Datasheet	74AS257 PDF File

Overview

DM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers September 1986 Revised March 2000 DM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers General Description These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four 3STATE outputs that can interface directly with data lines of bus-organized systems.
A 4-bit word selected from one of two sources is routed to the four outputs.
The DM74AS257 presents true data whereas the DM74AS258 presents inverted data to minimize propagation delay time.
This 3-STATE output feature means that n-bit (paralleled) data selectors with up to 300 sources can be im...

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