TXS0102EPWR in TXS0108 / BSS138 Level Shifters Family
The TXS0102EPWR is a 2-bit bidirectional voltage-level translator manufactured by Texas Instruments. It is designed specifically for interfacing between mixed-voltage systems without the need for a direction-control signal. Utilizing an open-drain architecture with integrated pull-up resistors, it effectively bridges communication between legacy 5V devices and modern 1.2V to 3.6V microcontrollers, making it a standard choice for I2C and SMBus applications in constrained embedded environments.
Variants within the TXS0102 family primarily differ in their package dimensions and thermal characteristics. While the 'EPWR' suffix denotes the TSSOP package, other variants like the 'DCU' offer a smaller VSSOP footprint for space-critical PCB layouts. Some iterations may feature AEC-Q100 qualification for automotive use cases or extended temperature ratings, though the core electrical performance and bit-count remain consistent across the sub-family to ensure design portability.
