The NXB0101 is a 1-bit, dual supply translating transceiver with auto direction sensing, that enables bidirectional voltage level translation. It features two 1-bit input-output ports (A and B), one output enable input (OE) and two supply pins (VCC(A)and VCC(B)). VCC(A)can be supplied at any voltage between 1.2 V and 3.6 V and VCC(B)can be supplied at any voltage between 1.65 V and 5.5 V, making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pin A and OE are referenced to VCC(A)and pins B is referenced to VCC(B). A LOW level at pin OE causes the outputs to assume a high-impedance OFF-state. This device is fully specified for partial power-down applications using IOFF. The IOFFcircuitry disables the output, preventing the damaging backflow current through the device when it is powered down.