5 Volts output on nrf51 DK pin

[Yacire]

Hi,

it is possible to have 5V output on a Pin of the nrf51 DK ? if yes, how i can get 5V ?

Thanks, Yacire.

[RK]

Absolutely not - VDD absolute limit on the chip is 3.9V, and you can't get more than VDD out of an output pin, nor can you put more than VDD into an input either. When I need to drive something of 5V I use an on-board FET to buffer between the nrf51 and whatever I'm driving.

[Yacire]

Thanks RK,

But i don't understand when you say: " When I need to drive something of 5V I use an on-board FET" you can get a FET in the nrf51 Dk ? or it is your FET in your board ?

[RK]

I put a FET on my custom boards if I need to interface to anything with more than 3.3V which is where I usually run my nrf51 modules.