bidirection logic shifter

one-direction logic shifter

TXB010x VS TXS010x

For the same reason, the TXB0108 should not be used in applications such as I2C or 1-Wire where an open-drain driver is connected on the bidirectional data I/O. For these applications, use a device from the TI TXS01xx series of level translators.

Type Open-Drive Push-pull Examples
TXB 010x ×    
TXS 010x I2C, 1-Wire

Make sure the VCCA ≤VCCB.