SN74HC253D
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SN74HC253D характеристики
IC, DATA SELECTORS/MUX, 74HC253.
The SN74HC253D is a 4-line to 1-line dual Data Selector/Multiplexer with 3-state outputs. It 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 OE\ input. The outputs are disabled when their respective OE\ is high.
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