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BenjaminDu
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加入:2016-03-14 02:38
Da14580 logic voltage

Hi,

I have a digit signal logic 1 is about 1.5 V and logic 0 is 0 V, I want to know if it's possible for me input this signal in a system with 3.3 V power supply.

Thanks a lot
Benjamin

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Qinjiny_Dialog
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加入:2016-11-01 05:47
Hi, Benjamin

Hi, Benjamin

Driving a 3.3V logic with a 1.5V signal is unlikely to be possible without level shifting. 1.5V cannot pass VIHof 3.3V thus won't be effective as input high.