UM3301B

Translators, Level Shifters Overview

The UM3301B is a 1-bit bidirectional voltage-level translator manufactured by Union Semiconductor International Limited. It features a single circuit and channel with an auto direction sensing capability, eliminating the need for a direction control pin. The device supports data rates up to 100Mbps and operates within a supply voltage range of 1.65V to 5.5V on both ports A and B. It is housed in a compact SOT-563 package, designed for efficient level shifting between different logic families.

Translators, Level Shifters Feature Summary

• Bidirectional voltage translation without external direction control pins
• Auto direction sensing mechanism for seamless signal flow
• Wide operating voltage range supporting multiple logic standards

Translators, Level Shifters Applications

• Interfacing low-voltage microcontrollers with higher-voltage peripherals
• Level shifting in mixed-signal digital systems
• Portable electronic devices requiring power-efficient communication

Translators, Level Shifters Procurement Notes

Verify the exact suffix (e.g., DG) against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your system's voltage levels before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm lead times and packaging quantities directly with suppliers as these vary by region and order volume.

Translators, Level Shifters Selection Notes

Select this component when a single-channel bidirectional translator with automatic direction sensing is required. It is suitable for applications where minimizing pin count and board space is critical. Consider the 100Mbps speed limit and voltage ranges to ensure it meets the interface requirements of the connected devices. Compare with other models in the UM330x series if multiple channels are needed.

Translators, Level Shifters Part Context

This component belongs to the UM330x series of voltage-level translators from Union Semiconductor. These ICs are designed to facilitate communication between circuits operating at different voltage levels. The series typically includes variants with varying channel counts and packages, such as the UM3301DA which uses a 6-DFN package. The UM3301B specifically utilizes the SOT-563 package for compact designs.

Translators, Level Shifters Replacement Considerations

Check for direct substitutes like the UM3301DA if a different package is acceptable. Verify that any replacement maintains the 100Mbps speed and bidirectional functionality. Ensure the alternative component supports the same voltage ranges and offers similar auto-direction sensing capabilities.