# EM7565 Shutdown Sequence Timing

**URL:** <https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533>\
**Category:** MC/EM Series\
**Created:** [March 11, 2022, 9:50am UTC](https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533 "2022-03-11T09:50:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mpagnamenta](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@mpagnamenta](https://forum.sierrawireless.com/u/mpagnamenta)\
**Post date:** [March 11, 2022, 9:50am UTC](https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533/1 "2022-03-11T09:50:22Z")

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Hello,

I’m dealing with the recommended shutdown sequence of the EM7565. As stated in the technical specification, it is recommended to keep the module powered for _t\_pwr\_off\_seq_ after asserting the _Full\_Card\_Power\_Off#_ signal.

In the power table, it is stated that the module will pull 70 uA typ. when _Full\_Card\_Power\_Off#_ is asserted. However, the timing of this it is not clear to me. Will the device enter the power off mode right after _Full\_Card\_Power\_Off#_ is asserted? If yes, do you have an exact number for the delay there (e.g. 2 us)? Or will this happen only after _t\_pwr\_off\_seq_?

Thank you.

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**Author:** ![mpagnamenta](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@mpagnamenta](https://forum.sierrawireless.com/u/mpagnamenta)\
**Post date:** [March 22, 2022, 4:00pm UTC](https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533/2 "2022-03-22T16:00:43Z")

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Hello,

friendly ping here.

Thanks.

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [April 29, 2022, 10:17am UTC](https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533/3 "2022-04-29T10:17:46Z")

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Hi mpagnamenta,

It will happen after t\_pwr\_off\_seq.

According to 41110788 EM7565 Product Specification r13.pdf, page 55:  
[41110788 EM7565 Product Specification r13.pdf](https://forum.sierrawireless.com/uploads/short-url/3BqUZcUlYTg60zHYXuRy9JooCRY.pdf) (2.1 MB)

_Required Shutdown Sequence_  
_Warning: To avoid causing issues with the file system, follow this shutdown sequence._  
_1. Drive Full\_Card\_Power\_Off# low._  
_2. Wait for at least t\_pwr\_off\_seq seconds._  
_3. Remove power._

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<div class="post-metadata">

**Author:** ![anon56110884](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@anon56110884](https://forum.sierrawireless.com/u/anon56110884)\
**Post date:** [May 9, 2022, 3:00pm UTC](https://forum.sierrawireless.com/t/em7565-shutdown-sequence-timing/26533/4 "2022-05-09T15:00:57Z")

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