Parametric search - HSE available or not
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‎2016-02-07 12:33 PM
Posted on February 07, 2016 at 21:33
Hi, I have tried in STM32Cube and I have tried the online parametric search. I want to filter the STM32L0xxx parts so I only get those which have external HSE clock connections available. This ought to be possible, have I overlooked something? It is usually one of the first criteria that comes up in a design - is crystal precision and stability needed, or is it not..
Thanks for any input on how to do that.Regards, Soren
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‎2016-02-07 12:37 PM
Posted on February 07, 2016 at 21:37
Pretty sure they all provide for one, CAN and USB normally requiring the accuracy afforded by them.
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‎2016-02-09 3:27 AM
Posted on February 09, 2016 at 12:27
Hi Clive, thank you
Many L0 devices don't have a HSE. For example, STM32L052 in the UFQFPN32 package don't have any OSC pins. They do have a 1% or something HSI which is good enough for CAN and USB. However, I need better than that...RegardsSoren