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