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TAlle.1
Associate
Mar 16, 2021 9:59 AM UTC
Solved

Ceramic resonator instead of oscillator?

Hi everyone,

I'm designing my first STM32 design using STM32F103C8and wondering if I can use 2 Ceramic resonators instead of oscillators as shown in my schematic.

thanks in advanced!

Tommy

This topic has been closed for replies.
Bowman32
Bowman32Best answer
ST Employee
Mar 16, 2021 5:08 PM UTC

Hi @TAlle.1​ 

Yes, you can use ceramic resonator instead of oscillator.

As mentioned by @Uwe Bonnes​, you can refer to application note AN2867 "Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs". Along of this document you will find how to select a suitable resonator for your MCU, a not exhaustive list of recommended resonators, PCB design guidelines... 

Bouraoui

2 replies

Uwe Bonnes
Chief
Mar 16, 2021 11:17 AM UTC

Have a look at AN2867

Bowman32
Bowman32Best answer
ST Employee
Mar 16, 2021 5:08 PM UTC

Hi @TAlle.1​ 

Yes, you can use ceramic resonator instead of oscillator.

As mentioned by @Uwe Bonnes​, you can refer to application note AN2867 "Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs". Along of this document you will find how to select a suitable resonator for your MCU, a not exhaustive list of recommended resonators, PCB design guidelines... 

Bouraoui