Typical IIN vs VIN
characteristics of the TXB0106 are shown in Figure 7-2. For proper operation, the device driving the data I/Os of the TXB0106 must have
drive strength of at least ±2mA.
A. VT is the input threshold voltage of the TXB0106 (typically VCCI/ 2).
B. VD is the supply voltage of the external driver.