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lk.dgironi
lk.dgironi
Associate III
November 4, 2024
Solved

STM32F103x8 pin compatible or LQFP48 alternative

  • November 4, 2024
  • 3 replies
  • 1468 views

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!

Best answer by mƎALLEm

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

3 replies

mƎALLEm
mƎALLEm
ST Technical Moderator
November 4, 2024

Hello,

The answer is provided in the datasheet:

SofLit_1-1730718861807.png

SofLit_2-1730718919938.png

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

 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
    lk.dgironi
    lk.dgironiAuthor
    Associate III
    November 4, 2024

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

    dsCapture.PNG

    mƎALLEm
    mƎALLEmBest answer
    ST Technical Moderator
    November 4, 2024

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

    To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
      lk.dgironi
      lk.dgironiAuthor
      Associate III
      November 4, 2024

      Thanks!

      Andrew Neil
      Andrew Neil
      Super User
      November 4, 2024
      @lk.dgironi wrote:

      2) Is there any other candidate

      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

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