I want to let nRF9160 communicate through UART with 3.3V logic level, but the logic level is originally 1.8V.
I have been reading nRF91_DK_User_Guide_v07.pdf, but I'm not really clear.
Any help?
I want to let nRF9160 communicate through UART with 3.3V logic level, but the logic level is originally 1.8V.
I have been reading nRF91_DK_User_Guide_v07.pdf, but I'm not really clear.
Any help?
Hi yusuke217,
Since the GPIOs is set to 3V, and I/O pin voltage is VDD_GPIO +/- 0.3V is absolute maximum ratings you should be good.
Also it's worth noticing that the GPIO Threshold is 0.7 x VDD for '1' and 0.3 x VDD for '0'.
Hi yusuke217,
Since the GPIOs is set to 3V, and I/O pin voltage is VDD_GPIO +/- 0.3V is absolute maximum ratings you should be good.
Also it's worth noticing that the GPIO Threshold is 0.7 x VDD for '1' and 0.3 x VDD for '0'.