The SNxAHCT126 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 low. When OE is high, the respective gate passes the data from the A input to the Y output. For the high-impedance state during power up or power down, tie OE to GND through a pull-down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.