UM3208H

Translators, Level Shifters Overview

The UM3208H is an 8-bit bidirectional voltage-level translator designed for open-drain and push-pull applications, manufactured by Union Semiconductor. It facilitates data transfer in multi-voltage systems by shifting logic levels between a low-voltage side (VCCA) ranging from +1.65V to +3.6V and a high-voltage side (VCCB) ranging from +2.3V to +5.5V. The device features ±15kV ESD protection on the VCCB side and utilizes a transmission-gate based design for bidirectional translation. It includes an output enable (OE) pin supplied by VCCA to enter three-state mode, reducing supply current when OE is low.

Translators, Level Shifters Feature Summary

• Provides bidirectional voltage level translation between low-voltage ASICs/PLDs and higher-voltage systems using a transmission-gate architecture.
• Offers robust ±15kV ESD protection on the VCCB side to safeguard signals routed externally.
• Supports configurable logic levels via external VCCA and VCCB voltages, accommodating various system requirements.
• Features an output enable function that places outputs in a three-state mode to minimize power consumption.

Translators, Level Shifters Applications

• Data transfer interfaces between low-voltage application-specific integrated circuits (ASICs) and programmable logic devices (PLDs).
• Connecting microcontrollers operating at lower voltages to peripheral devices requiring higher voltage logic levels.
• Multi-voltage system integration where signal compatibility between different voltage domains is required.

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'H' against official Union Semiconductor documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required operating temperature range and ESD protection ratings for the target application environment. Cross-reference ordering information with authorized distributors to confirm availability and authenticity of the component.

Translators, Level Shifters Selection Notes

Select the UM3208H when an 8-channel bidirectional translator is needed for mixed-voltage designs. Confirm that the system's low-voltage domain falls within the 1.65V to 3.6V range and the high-voltage domain is within 2.3V to 5.5V. Consider the ±15kV ESD rating if external signal routing is involved. Evaluate the need for the OE pin functionality for power management requirements in the final design.

Translators, Level Shifters Part Context

The UM3208H belongs to the UM320x series of voltage-level translators from Union Semiconductor, which also includes variants like the UM3202 and UM3204 offering fewer channels. This series is designed to bridge analog and digital worlds by managing voltage differences in electronic devices. The manufacturer focuses on high-performance linear and mixed-signal integrated circuits for various electronic equipment applications.

Translators, Level Shifters FAQ

What is the voltage range for the VCCA and VCCB supplies?

The VCCA supply ranges from +1.65V to +3.6V, while the VCCB supply ranges from +2.3V to +5.5V.

How does the device handle data direction?

It uses a transmission-gate based design to allow data translation in either direction (VCCA ↔ VCCB) on any single data line.

What is the purpose of the OE input?

The OE input controls the output state; when low, it places the outputs in a three-state mode to reduce supply current.