This is a placeholder character for the respective temperature class in which the module can be operated. You can find the breakdown in the data sheet, section 7 (Ordering Information):6 = Industrial temperature range, -40...+85°C7 = Industrial temperature range, -40...+105°CThere are other temperature ranges, e.g. 3 = -40...+125°C, but this is not guaranteed for every family of STM32 devices.Does it answer your question?Regards/Peter

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In STM32F407VGTx , what is meaning of x?

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STM32F4 series

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Peter BENSCHBest answer

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This is a placeholder character for the respective temperature class in which the module can be operated. You can find the breakdown in the data sheet, section 7 (Ordering Information):

6 = Industrial temperature range, -40...+85°C
7 = Industrial temperature range, -40...+105°C

There are other temperature ranges, e.g. 3 = -40...+125°C, but this is not guaranteed for every family of STM32 devices.

Does it answer your question?

Regards

/Peter

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