This bus buffer gate is a single line driver with a 3-state output. The
output is disabled when the output-enable (OE) input is high. This device
has the input-disable feature, which allows floating input signals.
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
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