UM3308QA

Overview

The UM3308QA is an 8-bit bidirectional voltage-level translator manufactured by Union Semiconductor. It features auto direction sensing to manage data flow between different voltage domains without requiring a direction control pin. The device provides enhanced electrostatic discharge protection rated at ±15kV on all I/O pins, ensuring robust operation in electrically noisy environments. Designed for half-duplex communication, it bridges analog and digital worlds by facilitating signal translation between mixed voltage systems.

Feature Summary

• Auto direction sensing eliminates the need for external direction control pins
• Enhanced ESD protection rated at ±15kV on all input/output pins
• Supports bidirectional voltage level translation between mixed voltage domains

Applications

• Mixed voltage system interfacing
• RS-485 transceiver level translation
• EMI-sensitive application interfaces

Procurement Notes

Verify the specific suffix 'QA' against official Union Semiconductor documentation to confirm package type and temperature grade. Ensure the ordering part number matches the exact datasheet revision. Confirm RoHS compliance status directly with the manufacturer or authorized distributor before procurement.

Selection Notes

Select this component when designing systems requiring automatic voltage translation without manual direction control. It is suitable for applications needing high ESD immunity on data lines. Verify that the supply voltages of the connected buses fall within the specified operating range for reliable level shifting.

Part Context

This component belongs to the Union Semiconductor voltage translator family, which includes variants like the UM3302 and UM3304. These devices are designed to bridge the gap between analog and digital circuits, providing detection, measurement, and conversion capabilities for various electronic equipment applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.