STM32F372VB datasheet(73/128 Pages) STMICROELECTRONICS

Numer części	STM32F372VB

Szczegółowy opis	ARM Cortex-M4F 32b MCUFPU, up to 256KB Flash32KB SRAM timers

PDF	128 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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73 / 128 page

STM32F37x

Electrical characteristics

Doc ID 022691 Rev 3

73/128

For CL1 and CL2, it is recommended to use high-quality external ceramic capacitors in the

5 pF to 20 pF range (typ.), designed for high-frequency applications, and selected to match

the requirements of the crystal or resonator (see Figure 14). CL1 and CL2 are usually the

same size. The crystal manufacturer typically specifies a load capacitance which is the

series combination of CL1 and CL2. PCB and MCU pin capacitance must be included (10 pF

can be used as a rough estimate of the combined pin and board capacitance) when sizing

CL1 and CL2.

Note:

For information on electing the crystal, refer to the application note AN2867 “Oscillator

design guide for ST microcontrollers” available from the ST website www.st.com.

Figure 14.

Typical application with an 8 MHz crystal

REXT value depends on the crystal characteristics.

STM32F372VB Arkusz danych(PDF) 73 Page - STMicroelectronics