TITXS0102

Overview

The TXS0102 is a 2-bit bidirectional voltage-level translator designed specifically for open-drain and push-pull applications. It features auto-direction sensing, allowing for level shifting between 1.65V to 3.6V on the A-port and 2.3V to 5.5V on the B-port without a dedicated direction-control signal. This makes it an ideal solution for interfacing low-voltage microcontrollers with higher-voltage peripherals.

Why Choose This Part

The device eliminates the need for a direction-control signal, reducing pin count on the host processor and simplifying firmware. It supports both open-drain and push-pull CMOS logic at data rates up to 24Mbps, providing flexibility across various protocols. Additionally, the Vcc isolation feature ensures that if either Vcc input is at ground, all outputs are placed in a high-impedance state to prevent backflow current.

Applications

Getting Started

When designing with the TXS0102, ensure that VCCA is always less than or equal to VCCB and pull-up resistors are sized correctly for your target I2C speed. For prototyping, the part is available in small 8-pin SSOP (DCT) or VFSOP packages, which can be used with standard breakout boards. Keep trace lengths short to minimize parasitic capacitance, as the auto-sensing circuitry relies on edge-rate accelerators.

TXS0102 Family