UM3302M8

Overview

The UM3302M8 is a 2-bit bidirectional voltage-level translator manufactured by Union Semiconductor. It features automatic direction sensing to manage data flow between different voltage domains without requiring a direction control pin. The device supports dual power supplies, allowing translation between low-voltage logic levels and higher-voltage interfaces. It incorporates robust electrostatic discharge (ESD) protection rated at ±15 kV according to the Human Body Model, ensuring reliability in sensitive electronic environments.

Feature Summary

• Automatic direction sensing eliminates the need for external direction control pins
• Bidirectional voltage translation capability between independent supply rails
• High ESD protection rating of ±15 kV HBM for enhanced signal integrity

Applications

• Interfacing low-voltage microcontrollers with higher-voltage peripheral devices
• Level shifting in mixed-signal systems with multiple voltage domains
• Data bus translation in embedded systems requiring bidirectional communication

Procurement Notes

Verify the specific suffix 'M8' against official Union Semiconductor documentation to confirm package type and tape-and-reel specifications. Ensure the requested component matches the exact part number listed in current product catalogs, as suffixes often denote packaging or temperature grade variations that affect handling and storage requirements.

Selection Notes

Select this component when designing circuits requiring automatic bidirectional level translation without complex control logic. It is suitable for applications where space is limited due to the absence of direction control pins. Verify that the operating voltage ranges of both sides of the translator align with the system's power supply architecture before integration.

Part Context

This component belongs to Union Semiconductor's family of voltage-level translators, which includes variants with different bit widths such as the UM3304 and UM3308. These devices are designed to facilitate communication between digital components operating at different voltage levels, commonly used in portable electronics and industrial control systems.

Replacement Considerations

The Texas Instruments TXB0102 is a functionally similar 2-bit bidirectional voltage-level translator with auto direction sensing and ±15 kV ESD protection. Verify pin compatibility and electrical characteristics before substitution.