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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Is there a minimum pulse width for a pin reset? (nRF52810)</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/33121/is-there-a-minimum-pulse-width-for-a-pin-reset-nrf52810</link><description>A time T_PINR is specified in the datasheet, as shown in the snippet below. 
 Does this give me an indication of the pulse width for a pin reset? If so, how do I interpret this value? If not, what does this specification refer to, and how long would I</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 09 Apr 2018 14:02:44 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/33121/is-there-a-minimum-pulse-width-for-a-pin-reset-nrf52810" /><item><title>RE: Is there a minimum pulse width for a pin reset? (nRF52810)</title><link>https://devzone.nordicsemi.com/thread/127460?ContentTypeID=1</link><pubDate>Mon, 09 Apr 2018 14:02:44 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:1ca1908c-e514-4229-87f0-5ff273800714</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;&lt;span&gt;Hi,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;No, the t_PINR parameter describes how long it will take for the nRF52&amp;#39;s internal pull-up resistor to pull nRESET high, and hence de-assert the reset.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;To guarantee pin reset on the nRF52832 the nRESET pin should be pulled logic low (&amp;lt;0.3 * VDD) for a &lt;strong&gt;minimum&lt;/strong&gt; of 0.2us. The chip will enter reset state on negative edge (&amp;lt;0.3 * VDD), and the chip will be released from pin reset on positive edge (0.7 * VDD).&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>