RTC (Real Time Clock) support

[Ishwar Sharma]

Hi,

We are looking to use nRF5340 device in our new design. We need RTC (Real Time clock) feature with this design.

Does nRF5340 device support RTC (Real Time Clock). nRF5340 supports only Real Time counters. 

Best Regards

Ishwar

[Kazi Afroza Sultana]

You can find hardware design file here for nRF5340DK here https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/dev-kits/nrf5340-dk/nrf5340-development-kit---hardware-files-2_0_0.zip .

[Ishwar Sharma]

Hi,

Thanks for sharing the information.

Need some more clarification as below.

1. What is GPIOs state during pin reset (By Pin AC31). Can we connect 3.3V on GPIO (output) during pin reset. We need this in our application. This GPIO is configured as output.

2. As per datasheet, VOH is shown minimum as VDD-0.4 V. Will it depend upon current drawn from GPIO ? If yes can you please provide graph between VOH and current drawn from GPIO.

Best regards

[Kazi Afroza Sultana]

Hello,

The original case was RTC related so it would be better if you open a new case with your queries about GPIO pin state?