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TXB0106: OE levels

Part Number: TXB0106

Hi,

I am planning to use the TXB0106 in my design to level shift between 3.3V and 1.8V. As per the datasheet, i have hooked up the 3.3V to Vccb and the 1.8V to Vcca as Vccb > Vcca. The OE signal is referenced to Vcca but i want the OE to be controlled by a 3.3V signal (from the Vccb side).  In the datasheet, it does indicate the maximum voltage for Vih on the OE signal is 5.5V, so it is safe to connect the OE to 3.3V even though it is referenced to 1.8V?

Thanks

William