Can the digital pins of the MPC5744P be used at 5V? (primary board - KTMPC5744DBUG, secondary board - KT33908MBUG)

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Can the digital pins of the MPC5744P be used at 5V? (primary board - KTMPC5744DBUG, secondary board - KT33908MBUG)

650 Views
giannisss91
Contributor I

I have these boards: KTMPC5744DBUG, KT33908MBUG. and i would like the digital pins to be at 5V level, not 3.3V. But when i make Vcca = 5V and use it as the supply of the digital pins i get an error from the secondary board and nothing works. Is there an option where i could have 5V digital pins?

Labels (1)
1 Reply

482 Views
PetrS
NXP TechSupport
NXP TechSupport

Hi,

The MPC5744P does not allow I/O pins be supplied by 5V, only ADC reference can be supplied by 5V.

The possible board power supply setting scenarios are given in chapter 3.5.1 Power Supplies of the board user guide

http://cache.freescale.com/files/analog/doc/user_guide/KTMPC5744DBUG.pdf.

BR, Petr