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Peripherals include USB High Speed, three SPI ports, four I 2 C ports, three USARTs and one LPUART. Operation is from 1.71 to 3.6V and over -40 to 85°C or 105°C depending on the part. Amongst modes, ...

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While laptops may be great for portable computing, a desktop computer can flex some serious muscle for working on the most demanding applications or playing the latest graphics-intensive games.

Which USART peripheral to use does seem like a pretty easy choice especially when the lower-end STM32F0 MCUs have only two USARTs. That is, until you realize that they’re not all identical.