https://devzone.nordicsemi.com/f/nordic-q-a/46137/low-frequency-gpio-of-the-chip-nrf52840-ckaa-rHello, I can not find any datasheet for the NRF52840-CKAA-R chip. I need to know which GPIO pins have the constraint &quot;LF&quot; (low frequency only). Can I consider that the characteristics are the same as those of the chip NRF52840-QIAA-R? Best regardsen-USTelligent Community 13Mon, 15 Apr 2019 08:04:11 GMThttps://devzone.nordicsemi.com/thread/182006?ContentTypeID=1Mon, 15 Apr 2019 08:04:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8f565dec-aac7-40a7-9a17-a4f51105c166BenS<p>Hi Simon,</p> <p>Thanks for your&nbsp; answer.</p> <p>I was using an old product specification (V1.0) that did not contain this chapter.</p> <p>Best regards,</p> <p>Benjamin</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/181997?ContentTypeID=1Mon, 15 Apr 2019 07:27:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c3e5ab87-c6c4-4eca-8236-7f5a5ecb41bdSimonr<p>Hi Benjamin</p> <p>Due to the Easter holiday you will have to expect a delay in replies, sorry for the inconvenience!</p> <p>Please see chapter &quot;7.1.2 WLCSP ball assignments&quot; in the product specification for what pins should be low frequency only.</p> <p>Best regards and happy Easter,</p> <p>Simon</p><div style="clear:both;"></div>