Hi experts,
I use TXS0108 as a level shifter for nandflash,The yellow waveform in the figure below is VCCA=1.8V output, and the red waveform is VCCB=3V3 input,I would like to ask why the first waveform of the 1V8 output slowly rises?
Thanks
wen
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Hi experts,
I use TXS0108 as a level shifter for nandflash,The yellow waveform in the figure below is VCCA=1.8V output, and the red waveform is VCCB=3V3 input,I would like to ask why the first waveform of the 1V8 output slowly rises?
Thanks
wen
您好,红色波形是3.3V输入,从输入波形来看,第一个脉冲这里好像有个向下的尖峰导致输出上升沿这里缓慢。您可以将波形放大看下输入信号第一个脉冲这里,向下尖峰之后上升沿应该也是一个缓慢上升的过程。
另外就是每个低电平上升的过程中看起来也有异常。负载电容过大的话会导致上升沿缓慢。
电路图可以附上看下,OE虽然是高有效,我的建议是电压起来稳定之后再将OE拉高。