UM3204H

Overview

The UM3204H is a 4-bit bidirectional voltage-level translator designed for open-drain and push-pull applications. It facilitates data transfer in multi-voltage systems by shifting logic levels between two domains defined by external supply voltages, VCCA and VCCB. The device accepts VCCA from +1.65V to +3.6V and VCCB from +2.3V to +5.5V. It utilizes a transmission-gate based design to allow data translation in either direction on any single data line. The component includes an output enable (OE) input circuit supplied by VCCA to enter a three-state mode, reducing supply current when OE is low.

Feature Summary

• Bidirectional data translation capability using transmission-gate architecture
• Supports both open-drain and push-pull application interfaces
• Configurable logic levels via externally applied VCCA and VCCB supplies
• Three-state output mode controlled by OE signal to minimize power consumption

Applications

• Data transfer between low-voltage ASICs or PLDs and higher voltage systems
• Multi-voltage system interconnects requiring level shifting
• Open-drain bus interface translation
• Push-pull signal level conversion

Procurement Notes

Verify the specific suffix H against manufacturer documentation to confirm package type and pinout compatibility. Ensure that the required voltage ranges for VCCA and VCCB align with the target system design specifications before integration. Confirm availability of the datasheet for detailed electrical characteristics and thermal information.

Selection Notes

Select this component when interfacing logic families operating within the 1.65V to 5.5V range. The device is suitable for designs requiring bidirectional flow on four independent channels. Consider the transmission-gate topology for its ability to handle both open-drain and push-pull configurations without additional external components.

Part Context

The UM3204H belongs to the UM320x series of voltage-level translators manufactured by Union Semiconductor. This family includes variants such as the UM3202 (2-bit) and UM3208 (8-bit), offering scalable channel counts for different interface requirements. The H suffix typically denotes a specific package option within this product line, distinguishing it from other physical form factors available in the series.