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TXB0104: TXB0104 OUTPUT signal shake problem

Part Number: TXB0104

Dear TI members:

When I use TXB0104 in SPI(3.3V-1.5V),and put a 2k pull-dow resistor in IO,the Voh become lower and shake。

I found the reason that TXB0104 can't diver high load and it will reduce the level of the output in your datasheet.

But I still want to know why the output signal repeatedly rise and fall.

Do you have some  idea about that? Thanks.


  • 您好,

    您是A端口接1.5V,B端口接3.3V吗?请确认下,因为A 端口支持 1.2V 至 3.6V 的电压,B 端口支持 1.65V 至 5.5V 的电压 ,需满足 VCCA ≤ VCCB