Jump to content
ak96

Can the input voltage on a digital pin be higher than VCC?

Recommended Posts

Assuming the MSP430 is powered by 3.3V, can I apply a 3.7V signal on a digital pin?  Can I apply a 2.5V input? Will it still read rising and falling edges on the pin if the voltage on the pin is more or less than the supply voltage?

Share this post


Link to post
Share on other sites
2 hours ago, energia said:

Same for the "Positive-going input threshold voltage"

 

Screen Shot 2018-08-28 at 9.39.34 AM.png

Sorry, forgot to mention I'm using the MSP430G2553. From what I understand from the first table, the input voltage cannot be greater than 0.3V higher than VCC and 0.3V less than VSS, and the second table gives voltage thresholds for rising or falling edges? The second table only gives information for 1.8V and 3V; is there any way I can find those threshold voltages for VCC = 3.7V?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...