TXS0102DCUR

Overview

The TXS0102DCUR is a bidirectional voltage-level translator featuring two independent channels in an 8-pin VSSOP package. It supports A-port voltages from 1.65V to 3.6V and B-port voltages from 2.3V to 5.5V, with the constraint that VCCA must not exceed VCCB. The device achieves data rates up to 24Mbps in push-pull mode and 2Mbps for open-drain applications. Operating temperatures range from -40°C to +85°C, with propagation delays of approximately 260ns.

Feature Summary

• Automatic direction detection eliminates the need for external direction control signals
• Supports mixed-voltage systems by translating between logic levels such as 1.8V, 2.5V, 3.3V, and 5V
• Provides VCC isolation where both ports enter high-impedance state if either supply drops to ground

Applications

• Connecting low-voltage microcontrollers to higher-voltage peripherals like sensors or memory
• Level shifting I2C bus lines (SCL/SDA) between different voltage domains
• Translating UART and SPI communication signals across mixed-voltage interfaces

Procurement Notes

Verify the specific suffix 'DCUR' corresponds to the VSSOP-8 package and tape-and-reel orientation. Confirm RoHS compliance status and REACH SVHC declarations against the latest manufacturer documentation. Ensure the ordering part number matches the required lead time and production lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when automatic direction sensing is required without additional GPIO overhead. It is suitable for designs needing simultaneous translation between lower voltage logic on port A and higher voltage logic on port B. Verify that the application does not require power sequencing constraints, as the device supports flexible ramp-up order for VCCA and VCCB supplies.

Part Context

This device belongs to the Texas Instruments TXS0102 family of bidirectional voltage translators. It utilizes NanoStar packaging technology to provide a compact footprint for portable electronics. The series is designed to replace traditional resistor-based level shifting solutions, offering improved signal integrity and reduced board space requirements for digital interface conversion.

Replacement Considerations

TXS0102DCTT: Same functional specifications but packaged in SSOP-8 instead of VSSOP-8.