Posted on May 17, 2011 at 12:58You should be able to use 74AHCT245 running @ +5V. It's VIH = 2.0V, suitable for interfacing to the STM32's 3.3V output. You should configure the GPIO in push-pull mode. Chris
Posted on May 17, 2011 at 12:17''The linear regulator will track de SMPS. '' - maybe, maybe not. The linear regulator will have some finite drop-out voltage. So the linear's input voltage must be greater than VDD if VDDA is to achieve the same level...
Posted on May 17, 2011 at 12:17I am trying to wade through the power supply requirements regarding VDDA vs. VDD for STM32 and I'm unclear on a few things: 1) AppNote 2834 (http://www.st.com/stonline/products/literature/an/15067.pdf) recommends using...
