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SN54HC253,SN74HC253,pdf(DUAL 4

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  • 标      签: Multiplexe

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Each of these data selectors/mulTIplexers contains inverters and drivers to supply full binary decoding data selecTIon to the AND-OR gates. Separate output-control inputs are provided for each of the two 4-line secTIons. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (in the high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each output has its own output-enable (OE) input. The outputs are disabled when their respecTIve OE is high.
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