https://devzone.nordicsemi.com/f/nordic-q-a/117312/irqTwo questions about IRQ output of nRF24L01+ 1 what is timing of IRQ output 2 does IRQ output can tolerate pull-up resistor, connected to 5v ?en-USTelligent Community 13Thu, 02 Jan 2025 05:22:05 GMThttps://devzone.nordicsemi.com/thread/516588?ContentTypeID=1Thu, 02 Jan 2025 05:22:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5368c625-7462-47af-b6db-813ec431cb64Ksoni<p>Thanks <a title="ketiljo" href="https://devzone.nordicsemi.com/members/ketiljo"> ketiljo</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/515231?ContentTypeID=1Tue, 17 Dec 2024 08:41:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8dbfef90-15c7-480b-9c07-b947c59a0db3ketiljo[quote user=""]1 what is timing of IRQ output&nbsp;[/quote] <p>This can be found in the product specification.&nbsp;</p> <p>Chapter 7.7:&nbsp;</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1734424761856v1.png" alt=" " /></p> <p><a href="https://docs-be.nordicsemi.com/bundle/nRF24L01P_PS_v1.0/raw/resource/enus/nRF24L01P_PS_v1.0.pdf">https://docs-be.nordicsemi.com/bundle/nRF24L01P_PS_v1.0/raw/resource/enus/nRF24L01P_PS_v1.0.pdf</a></p> <p></p> <p></p> [quote user=""]2 does IRQ output can tolerate pull-up resistor, connected to 5v ?[/quote] <p>No, this is not a open drain output. Max output level is VDD. Only the inputs are 5 V tolerant.&nbsp;</p><div style="clear:both;"></div>