Reference Design

STM32 MCU Series HSE MHz Crystal Selection Tool

There are many different crystal options for STM32 MCU's. The tool below is designed to ensure that the MHz crystal chosen for a design meets the requirements for the STM32 series MCU. HSE is a high-speed external clock input that can be connected with quartz crystal or an external clock source with an input frequency range of 4 MHz to 52 MHz.

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