TCA39306DTMR

Translators, Level Shifters Overview

The TCA39306DTMR is a dual bidirectional voltage-level translator compatible with I2C, SMBus, and I3C protocols. It operates with VREF1 ranging from 0.85 V to 3.3 V and VREF2 from 1.8 V to 5.5 V. The device provides low ON-state resistance for minimal signal distortion and supports propagation delays as low as 1.2 ns. It features an enable pin for isolation and includes ESD protection exceeding 2000-V human-body model standards.

Translators, Level Shifters Feature Summary

• Bidirectional translation between mixed-mode I2C buses without direction pins
• Low ON-state resistance minimizes signal distortion
• High-impedance state when disabled for bus isolation
• ESD protection exceeding JESD 22 standards

Translators, Level Shifters Applications

• I2C, SMBus, PMBus, MDIO, UART, and low-speed SDIO interfaces
• Servers and routers (telecom switching equipment)
• Personal computers and industrial automation systems

Translators, Level Shifters Procurement Notes

Verify the DTM package designation matches the X2SON-8 form factor required for your PCB layout. Confirm that the operating temperature range of -40°C to +125°C aligns with your system's thermal environment. Ensure VREF1 and VREF2 supply voltages fall within the specified limits to maintain proper translation functionality.

Translators, Level Shifters Selection Notes

Select this component when interfacing between different voltage domains on I2C or SMBus lines. It is suitable for applications requiring bidirectional data flow without explicit direction control. Consider its low propagation delay for high-speed Fast Mode Plus or I3C operations. Verify that the board capacitance limits are respected to ensure reliable communication.

Translators, Level Shifters Part Context

This part belongs to the TCA39306 family of voltage translators manufactured by Texas Instruments. It is designed specifically for mixed-voltage I2C environments. The DTMR suffix indicates the specific X2SON-8 surface-mount packaging variant optimized for compact circuit designs.

Translators, Level Shifters Replacement Considerations

The PCA9306 series serves as a functional alternative for bidirectional I2C translation. Verify compatibility regarding voltage ranges, package dimensions, and electrical characteristics before substitution.