This 2-bit noninverting translator uses two separate configurable power-supply rails. The
A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port
is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for
low-voltage bidirectional translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V voltage
nodes. For the TXB0302, when the output-enable (OE) input is low, all outputs are placed in the
high-impedance state. To ensure the high-impedance state during power up or power down, OE should
be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the
current-sourcing capability of the driver. The TXB0302 is designed so that the OE input circuit is
supplied by VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
This 2-bit noninverting translator uses two separate configurable power-supply rails. The
A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port
is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for
low-voltage bidirectional translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V voltage
nodes. For the TXB0302, when the output-enable (OE) input is low, all outputs are placed in the
high-impedance state. To ensure the high-impedance state during power up or power down, OE should
be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the
current-sourcing capability of the driver. The TXB0302 is designed so that the OE input circuit is
supplied by VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.