3-STATE Quad 1 Of 2 Line Inverting Data Selectors/Multiplexers

These data selectors/multiplexers DM74AS258 contain inverters and drivers to supply full on-chip data selection to the four 3-STATE 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 implemented for data buses. It also permits the use of standard TTL Registers for data retention throughout the system.
By Fairchild Semiconductor
DM74AS258 's PackagesDM74AS258 's pdf datasheet

DM74AS258 Pinout, Pinouts
DM74AS258 pinout,Pin out
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