HD74LS251 - 1 of 8 Data Selector/Multiplexer

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Renesas

Part number	HD74LS251
Manufacturer	Renesas
File Size	172.55 KB
Description	1 of 8 Data Selector/Multiplexer
Datasheet	HD74LS251 Datasheet
Additional preview pages of the HD74LS251 datasheet.

a strobe-controlled 3-state output. The strobe must be at a low logic level to enable this device. The 3-state outputs permit a number of outputs to be connected to a common bus. When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off, and the output neither drives nor loads the bus significantly. When the strobe is low, the outputs are activated and operate as standard TTL totem-pole outputs. To.

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Published: Dec 4, 2017 |