Each of these data selectors/multiplexers SN54HC253 SN74HC253 contain 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 (at 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. The SN54HC253 is characterized for operation over the full military temperature range of 55C to 125C. The SN74HC253 is characterized for operation from 40C to 85 C By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN54HC253FK Rochester Electronics LLC Multiplexer, HC/UH Series, 2-Func, 4 Line Input, 1 Line Output, True Output, CMOS, CQCC20, CERAMIC, LCC-20
SN54HC253J Texas Instruments Dual 4-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-CDIP -55 to 125
SN54HC253 's PackagesSN54HC253 's pdf datasheet

SN54HC253 Pinout, Pinouts
SN54HC253 pinout,Pin out
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