Wow, this is 100 pins ... sure it has everything you need (and a lot of things that you don't need). But is 14mm square, I hope you have enough board space.

Check this link for reference - you can use design files of this eval board for quick start: http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/PF259717

There is a claim in the datasheet: "Internal 48 MHz oscillator with automatic trimming based on ext. synchronization" - not sure but I suspect that this would be a good option if used on USB - no need for clock crystal for the STM32.

2014-08-07 17:29 GMT+03:00 Miguel Garcia <gacuest@gmail.com>:

2014-08-07 16:23 GMT+02:00 krasi gichev <krasimirr@gmail.com>:

> Yep, 071 is good if host connection is either I2C or SPI. There are 2 I2C
> controllers so it can run as gateway.
> But for USB there is STM32F072CBT6 - at Digikey it is priced at 2.37USD for
> 1000pcs -
> http://www.digikey.com/product-detail/en/STM32F072CBT6/497-14645-ND/4815292.
> This one is in 48 pin. If more pins are needed, just switch to:
> STM32F072RBT6 -
> http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1574/LN1823/PF259605

And this: http://www.digikey.com/product-search/en?KeyWords=STM32F072VBT6 ??

Thanks.

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