QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

The HCT257 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 the high Logic level. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. By Texas Instruments
SN54HCT257 's PackagesSN54HCT257 's pdf datasheet



SN54HCT257 Pinout, Pinouts
SN54HCT257 pinout,Pin out
This is one package pinout of SN54HCT257,If you need more pinouts please download SN54HCT257's pdf datasheet.

SN54HCT257 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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