Hi team,
One question for you.
For this device, our customer usage just like the attached image, they want to know such a usage have any risks?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi team,
One question for you.
For this device, our customer usage just like the attached image, they want to know such a usage have any risks?
Hi Clemens, But the Vcc is 3.3V,the max input will be 5V because the input have been pulled up by 5V, is this ok?
Hi Eric,
Yes that is ok, these devices are over-voltage tolerant.
Best,
Malcolm
Hi Malcolm,
I'm confused that if I power supply the VCC with 3.3V, What's the max voltage will the input pin can withstand? is there any clamp diode adding to those input pin for overvoltage protection?
AHC inputs do not have such a diode. See [FAQ] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?
Hi Eric,
There is no positive clamp diode. In addition, the datasheet shows the inputs can withstand up to 5.5V at any supply level.
Best,
Malcolm
Hi Malcolm,
for this device it has no VCC clamp, and its input pin can withstand the max 5.5 V voltage ,it is independent on VCC, but some others devices which have the VCC clamp ,it max input voltage will depend on the VCC, is this right?