nRF52 minimum reset hold time

RE: nRF52 minimum reset hold time

Remo — Fri, 19 May 2017 05:28:57 GMT

Thank you very much.

RE: nRF52 minimum reset hold time

bjorn-spockeli — Thu, 18 May 2017 11:29:21 GMT

Hi Remo,

the RESET pin must be held low for a minimum of 0.2uS in order to generate a valid reset event. This is identical to the nRF51 Series.

Best regards

Bjørn

RE: nRF52 minimum reset hold time

Remo — Thu, 18 May 2017 05:56:27 GMT

As far as I understand it, this time specifies how long it takes to pull up the reset line after power on. I want to know how long I must at least put the reset signal to low to reset the nRF52 when it's already running.

RE: nRF52 minimum reset hold time

John — Wed, 17 May 2017 17:50:38 GMT

I'm looking at version 1.3 of the product specification. Table 18.10.2 has a section that indicates how to calculate the pin reset time. It is based on the capacitive load of the pin. They provide several examples such as C=500nF the time is 32.5mS, C= 10uF the time is 650mS.