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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>UICR vs external EEPROM (not write protected) for critical data?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/19775/uicr-vs-external-eeprom-not-write-protected-for-critical-data</link><description>Hello to all embedded jedi-masters out there! 
 I need your guidance. 
 I have a general product design question: I was wondering on what would be the best practice for storing critical product-related data: 
 
 The UICR registers of my nrf52832 </description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 20 Feb 2017 01:15:03 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/19775/uicr-vs-external-eeprom-not-write-protected-for-critical-data" /><item><title>RE: UICR vs external EEPROM (not write protected) for critical data?</title><link>https://devzone.nordicsemi.com/thread/76882?ContentTypeID=1</link><pubDate>Mon, 20 Feb 2017 01:15:03 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:ec54eca5-200d-4fb8-98b8-7c1d385a3922</guid><dc:creator>raccoon</dc:creator><description>&lt;p&gt;@Bjorn No more than 128 bytes. 4 UICRs will do the job then!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: UICR vs external EEPROM (not write protected) for critical data?</title><link>https://devzone.nordicsemi.com/thread/76881?ContentTypeID=1</link><pubDate>Fri, 17 Feb 2017 09:47:57 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:99034ab3-300b-47a3-9cbf-f876f6a499d1</guid><dc:creator>bjorn-spockeli</dc:creator><description>&lt;p&gt;@raccon: How much product-related data do you need to store? I would argue that if you can fit the product-related data in the UICR registers, then I would do that. Adding an external EEPROM will add cost and complexity to you product.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>