FAQ: Logic and Voltage Translation > Ground-Level Translators >> Current FAQ
The TXG product family can be used as a standard level translator (VCCA > VCCB or VCCA < VCCB) or in a buffer configuration when VCCA equals VCCB.
If ground shifting is not required but high data rate and low output skew are important, GNDA and GNDB may be tied together.
If ground shifting is required, VCCA/GNDA and VCCB/GNDB must remain separated, as shown below
