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Partname:SN54AHC257FK
Description:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
Manufacturer:Texas Instruments
Datasheet:PDF (144K).
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The 'AHC257 devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level.

Click here to download SN54AHC257FK Datasheet
Click here to download SN54AHC257FK Datasheet
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