https://devzone.nordicsemi.com/f/nordic-q-a/95760/esd-protection-for-various-linesHello, I am using the nRF52832 and am supposed to protect the lines SWDIO, SWDCLK, P0.21/nRESET and P0.30/AIN6 on our board with a TVS diode. With the PESD3V3L4UG, the nRF52832 on our board withstands the desired levels. However, I am concerned whetheren-USTelligent Community 13Tue, 17 Jan 2023 14:29:24 GMThttps://devzone.nordicsemi.com/thread/405288?ContentTypeID=1Tue, 17 Jan 2023 14:29:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:369145b9-8a50-4b49-bfaa-e7d85c83a4f9helsing<p>Hi Aleksander,</p> <p>Added capacitance to the SWD lines are not recommended. <span lang="en-US">The </span><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/gpio.html?cp=4_2_0_19_3#unique_520182720"><span lang="nb-NO">specification of the SoC&#39;s GPIOs</span></a><span lang="en-US"> is what you will need to adhere to.</span> The programmer of choice will need to be capable of driving the lines quickly enough for the SoC to detect high and low signals.&nbsp;</p> <p>One approach is to lower the programming speed. Another is to increase the drive strength of your programmer. There might be programmers available with various capabilities.</p> <p>I would recommend to test this.</p><div style="clear:both;"></div>