1. General description

The NXB0104 is a 4-bit, dual supply translating transceiver with auto direction sensing, that

enables bidirectional voltage level translation. It features two 4-bit input-output ports (An and Bn),

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). 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.

2. Features and benefits

• Wide supply voltage range:

• VCC(A): 1.2 V to 3.6 V and VCC(B): 1.65 V to 5.5 V

• IOFF circuitry provides partial Power-down mode operation

• Inputs accept voltages up to 5.5 V

• ESD protection:

• HBM: ANSI/ESDA/Jedec JS-001 Class 2 exceeds 2.5 kV for A port

• HBM: ANSI/ESDA/Jedec JS-001 Class 3B exceeds 15 kV for B port

• CDM: ANSI/ESDA/Jedec JS-002 Class C3 exceeds 1.5 kV

• Latch-up performance exceeds 100 mA per JESD 78B Class II

• Multiple package options

• Specified from −40 °C to +85 °C and −40 °C to +125 °C