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TXS0102-Q1: Connection method of OE pins

Part Number: TXS0102-Q1

I am asking about how OE pins are connected.

As a typical application on the Datasheet, it is written that the OE pin is connected to Gnd by Pull Down resistor



1) So if I do not use 3-State mode, is it correct to connect OE pin to Vcca? Or what happens when I connect OE Pin to Vcca?
2) If I open the OE pin, can there be a problem in operation?
3)This may be a bit wide question, but when do I need to connect OE pins to Gnd?

4)Or is it appropriate for this device to use to connect OE pins to Gnd?

5)What are the advantages of using the three state mode as the typ application suggests?

Please help me~~!!

Thank you

Best regards

  • Yoo young,

    The typical application diagram on the datasheet is a recommended connection but not necessarily to be followed by the customer.
    regarding the OE pin, it is a high impedance CMOS input which enables or disables the IO channels of the device when high or low respectively.

    If the hi-z mode is not desired, the pin can be connected to Vcca to always have the device enabled.
    It can be connected to gnd through a resistor which is high enough to be overdriven by the controlling input pin(eg microcontroller)
    During hi-Z mode, the current consumption of the device is significantly reduced. however, having the pull-down resistor would mean there will be constant current consumed when the device is enabled.
    Hope this helps.