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DBhut.1
Senior
October 5, 2026
Question

Suggestion of Lowest Cost STM32 MCU with some characteristics

  • October 5, 2026
  • 11 replies
  • 84 views

We are looking for Lowest Cost STM32 MCU with 32KB Flash and 12 KB RAM, 2 Uart, 1PWM, and 1 GPIO (No other requirments) for Mass Production requirement, Please help to choose.

11 replies

Ozone
Principal
October 5, 2026
DBhut.1
DBhut.1Author
Senior
October 5, 2026

I tried it, but it doesn’t show prices column need to visit each stm32 separately, that can be humanly erroneous in search, and we need this for mass production, so cost matters lots, that’s why i asked for support here. 

Ozone
Principal
October 5, 2026

> … that’s why i asked for support here. 

This forum consists to a large extend of customers and enthusiasts, who have as much insight in prices as you.
In other words, this is not the “ST support”.

>... that can be humanly erroneous in search, …

Really ?!?

> … we need this for mass production, so cost matters lots, …

Request a quote from you local distributor, and don’t forget to include projected annual quantities.
They have all the information you need, especially pricing.

For that, you would need to decide on at least some matching MCU variants.
The stated requirement are very generic, and almost all MCUs would meet them - except perhaps some variants in <20 pin packages.

You can ask you local distributor for the best MCU match, too.

mƎALLEm
ST Technical Moderator
October 5, 2026

Hello,

In next time, please don’t put your entire question in the title.

Please the tips on posting. I’ve already modified the title.

Thank you for your understanding.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
Associate II
October 5, 2026

You could also search the product listings of distributors Farnell, RS, Digikey etc for the lowest price STM32 that fits your specification.

Then narrow it down to help search ST Site an MX as suggested.

You might find a distributor holding large stock of what you want at a good price.

Chris21
Associate II
October 6, 2026

According to ST, “The STM32C0, ST's most affordable 32-bit microcontroller, breaks the cost barrier to the 32-it world and makes 32-bit capabilities accessible to all developers.”

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Chris21
Associate II
October 6, 2026
STOne-32
ST Technical Moderator
October 6, 2026

Dear ​@DBhut.1  ​@Ozone  ​@Chris21  ​@TDK  ​@rich.g.williams,

Thank you for the exchange and different options.   I wanted to invite you to explore “STM32 Sidekick” - Ask AI button ( right bottom) on the same question and try to engage a discussion to challenge the findings.

I tried today and here is the answer :

Your feedback is welcome.  Price list is not yet supported but is on the roadmap 

Cheers,

STOne-32.