Microcontroller Selection

[A_Matt19]

Hello,

I am in the process of selecting a microcontroller for my application and would like some guidance on which microcontroller would be best suited for my project. My project has the following known specifications/interfaces:

- x3 UART ports up to 512kbps
- x2 SPI busses connecting to the INA229 (max SPI clock frequency of 10MHz)
- Preferred operating temperature of -40C to 125C

I understand the selection from an interface pinout perspective. However, I am not as well-versed in what I need from the maximum supported clock frequency/memory perspective. Any guidance would be appreciated. 

[TDK]

Lots of chips can do this. Use the chip selector in STM32CubeMX to narrow down the selection. Here are some of them:

 

A 10 MHz SPI clock is not very high--all chips with an interface should be able to do that. The temperature spec is the driving condition here.

[CMYL]

Hello @A_Matt19, 

I suggest to use the online product selection on st.com (STM32 Microcontrollers (MCUs) - STMicroelectronics).

Product selector is applicable by Category. For example, below I'm searching within mainstream STM32 MCUs :

push the pink button expand filters:

Apply the filters you need: below I put the min of SPI and USART that your rquested and Min/Max Temperatures:

As a result I got 17 MCUs in mainstream. You can follow the same filtering method for other STM32 highPerf, ULP and wireless

Best Regards,

Younes