Skip to main content
MBelk
MBelk
Associate II
June 16, 2020
Solved

STM32F030F4P6 TSSOP20 OSC32

  • June 16, 2020
  • 2 replies
  • 1076 views

There isn't any PC14 PC15. Is it really inaxessible on this MCU and I'm have to find suitable HSE crystal in order to get high-presition RTC?

This topic has been closed for replies.
Best answer by moatjon

Hello MBelk,

Pins PC14 and PC15 are indeed not present on the TSSOP20 version of the STM32F030. As such, you cannot add an external low-speed oscillator. You can still use the internal low-speed clock (LSI) as a source for the RTC, although the achieved accuracy won't be as high as when using an external low-speed clock.

2 replies

moatjon
moatjonBest answer
Associate II
June 16, 2020

Hello MBelk,

Pins PC14 and PC15 are indeed not present on the TSSOP20 version of the STM32F030. As such, you cannot add an external low-speed oscillator. You can still use the internal low-speed clock (LSI) as a source for the RTC, although the achieved accuracy won't be as high as when using an external low-speed clock.

MBelk
MBelkAuthor
Associate II
June 16, 2020

Yes, but 4.096 MHs standard HSE crystal resonator will helps.

Terms & ConditionsAccessibility statement