The NTSX2102 is a 2-bit, dual supply translating transceiver with auto direction sensing,
that enables bidirectional voltage level translation. It features two 2-bit input-output ports
(An and Bn), one output enable input (OE) and two supply pins (VCC(A) and VCC(B)). Both supplies can be supplied at
any voltage between 1.65 V and 5.5 V. This flexibility makes the device suitable for
translating between any of the voltage nodes (1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins An and
OE are referenced to VCC(A) and pins Bn are 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 IOFF circuitry disables the output,
preventing the damaging backflow current through the device when it is powered down.