https://devzone.nordicsemi.com/f/nordic-q-a/45509/nrf52840-cryptocell-power-consumptionWhat is the power consumption of the Crypto cell? Same question for SPI peripheral running easy dma @2MHz.en-USTelligent Community 13Fri, 29 Mar 2019 15:17:01 GMThttps://devzone.nordicsemi.com/thread/179288?ContentTypeID=1Fri, 29 Mar 2019 15:17:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2c83daf4-1935-4fc6-ac62-49dfb1f168a9bjorn-spockeli<p>Hi mdp27,<br /><br /><span>Unfortunately, we do not have detailed current consumption numbers for CryptoCell. In practice, using the CryptoCell will result in a significant current consumption reduction over performing the cryptographic operations in SW, primarily because the calculation time is significantly reduced compared to a software solution, but it is best to set up a test with the specific algorithm and data size that is to be encrypted. If you are interested in a specific algorithm and data size then let me know and I can run a test and measure the current&nbsp;</span>consumption.&nbsp;</p> <p><span>SPI0-2 is identical to the SPI peripherals on the nRF52832 and you should not see much difference with respect to their current consumption.&nbsp;</span></p> <p><span><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-bd160c3cfcac455a8e25b9664b7ed778/pastedimage1553872606402v1.png" alt=" " /></span></p> <p><span>Best regards</span></p> <p><span>Bjørn</span></p><div style="clear:both;"></div>