Features: Operating Range 2-V to 5.5-V VCC Latch-Up Performance Exceeds 250 mA Per JESD 17PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 VInput voltage range, VI . . . . . . . . . ....
SN54AHC125: Features: Operating Range 2-V to 5.5-V VCC Latch-Up Performance Exceeds 250 mA Per JESD 17PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . ....
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Features: PinoutSpecificationsDescriptionThe SN54/74LS147 and SN54/74LS148 are Priority Encoders. ...
PinoutDescriptionThe LS155 and LS156 are Dual 1-of-4 Decoder/Demultiplexers with common Address in...

The SN54AHC125 devices are quadruple bus buffer gates featuring independent line drivers with 3-state outputs.Each output is disabled when the associated output-enable ( OE) input is high. When OE is low, the respective gate passes the data from the A input to its Y output.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 SN54AHC125 is determined by the current-sinking capability of the driver.