NTB010x Translating Transceivers NXP NTB010x Translating Transceivers are 1, 2 or 4-bit, dual supply, auto direction sensing transceivers that allow for bidirectional voltage level translation. The NTB010x features two 1-bit input/output ports (A and B), one output-enable (OE) port, and two supply pins (VCC(A) and VCC(B)). VCC(A) has a 1.2-3.6V range, and VCC(B) has a 1.65-5.5V range. This feature makes the device suitable for translating between any of the low voltage nodes (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V). An IOFF circuit provides a partial power-down mode and disables the output to prevent damaging backflow current when the NXP NTB010x is powered down..