7 years, 1 month ago.

Safe to apply 5V to Vb pin?

Is it safe to apply 5V into Vb pin? Will it shorten the micro-controller's life span?

1 Answer

7 years, 1 month ago.

Hello,

If you take a look here : http://mbed.org/handbook/mbed-NXP-LPC1768

you'll find

Quote:

  • Vb - Battery backup input for Real Time Clock
    • 1.8v-3.3v, 30uA

hope that helps