STM32F103x8 pin compatible or LQFP48 alternative

[lk.dgironi]

Hi all,

I've a board with the STM32F103C8T6 MCU.

My firmware has to handle a lot of IO, display and UART logic, nothing special but just a lot of logic.

So the 64K b internal flash memory is almost full.

I've a couple of question here:

1) can i switch to the STM32F103CBT6 so that I'll have 128Kb of flash without issues?

2) Is there any other candidate in a small package (like the LQFP-48) I can use? I have to use a small package cause I don't have that much space available on that board (find attached)

Thanks!

[SofLit]

Hello,

The answer is provided in the datasheet:

The only difference is the Flash size so you don't have to worry.

[lk.dgironi]

Thanks, so it's a yes on my request "1)", no issues replacing with STM32F103CBT6.

[SofLit · Accepted solution]

 As I said previously, no issue to migrate directly to 128kB!

[lk.dgironi]

Thanks!

[Andrew Neil]

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@lk.dgironi wrote:

2) Is there any other candidate

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https://www.st.com/content/st_com/en/stm32-mcu-product-selector.html

https://www.st.com/en/development-tools/st-mcu-finder-pc.html

https://www.st.com/en/development-tools/stm32-finder.html