Psd vih

jgil · ‎2005-06-09

Posted on June 09, 2005 at 09:11

Psd vih

jgil · ‎2011-05-17

Posted on May 17, 2011 at 12:07

Hello.

I'm using a upsd3212c with vcc=5V

And interface 74AHC00 with vcc=3V

Will TTL-levels reliably drive the inputs of the uPSD? That is, will a 2.4V signal from logic be interpreted as a hi, or do I need the 0.7Vcc required by p1.x MCU ports?

Best regards.

8-)