NXU0304BQX

Translators, Level Shifters Overview

The NXU0304BQX is a 4-bit dual-supply voltage level translating buffer with Schmitt-trigger inputs and 3-state outputs. It facilitates asynchronous communication between data buses, transmitting data unidirectionally from the A bus to the B bus on three channels and from the B bus to the A bus on one channel. Both VCCA and VCCB can be supplied at any voltage between 0.9 V and 5.5 V. The device ensures low static and dynamic power consumption across the entire supply range and is fully specified for partial power down applications using IOFF circuitry.

Translators, Level Shifters Feature Summary

• Features Schmitt-trigger inputs with integrated static high ohmic pull-down resistors to ensure tolerance for noisy environments or slow input signals.
• Includes IOFF circuitry that prevents potentially damaging backflow current through the device when powered down or if a power supply is disconnected.
• Supports suspend mode operation when either supply voltage drops below 100 mV or becomes disconnected, entering a high-impedance OFF-state.
• Provides high output drive capability of 12 mA at 5 V with low noise overshoot and undershoot less than 10% of VCCO.

Translators, Level Shifters Applications

• General purpose I/O level translation
• Push-pull voltage translation for UART, SPI, and JTAG protocols
• Consumer electronics requiring robust signal integrity

Translators, Level Shifters Procurement Notes

Verify the specific package suffix 'BQ' corresponds to the DHVQFN14 (SOT762-1) housing during procurement. Confirm the temperature range specification matches the design requirement of -40 °C to +125 °C. Ensure the ordering information aligns with the required marking code U0304 for identification purposes.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation is not required, as it supports fixed direction transmission on most channels. Consider the DHVQFN14 package dimensions of 2.5 mm x 3 mm x 0.85 mm for PCB layout constraints. Evaluate the maximum data rate capabilities against the target protocol speeds to ensure signal integrity is maintained.

Translators, Level Shifters Part Context

This part belongs to the NXU0x04 series of 4-bit dual-supply level translating buffers. It shares functional similarities with the NXU0104 and NXU0204 models but offers distinct channel configurations for mixed-direction data transfer. The series is designed for low-power applications requiring reliable voltage translation between various logic nodes.

Translators, Level Shifters Replacement Considerations

NXU0104 and NXU0204 are listed as similar function alternatives within the same product family.