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STM32U375CE Datasheet(PDF) 27 Page - STMicroelectronics

Part # STM32U375CE
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 144 DMIPS, 1 MB flash memory, 256 KB SRAM, SMPS
PDF  222 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U375CE Datasheet(HTML) 27 Page - STMicroelectronics

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Figure 5. Clock tree
MSIK in
PLL mode
MSIS in
PLL mode
MCO2
HCLK
FCLK Cortex free running clock
To Cortex system timer
AUDIOCLK
HSI RC 16 MHz
HSI16
LSI
HSE
SYSCLK
HSI48
MSIS
HSI48 RC 48 MHz
MSIK
Clock source
control
LSI
LSE
LSE
AHB
PRESC
/ 1,2,..512
/ 1→128
OSC_OUT
OSC_IN
HSE OSC
4-50 MHz
Clock
detector
HSE
MSIK
MSIS
HSI16
HSI48
/ 8
To APB1 peripherals
PCLK1
To FDCAN1
MSIK
To LPTIM2
HSI16
LSE
LSI
To I3C1
MSIK
To I2Cx (x = 1,2)
MSIK
To SPIx (x = 2,3)
MSIK
To USART3, UART4, UART5
HSI16
x3
x1 or x2
To TIMx (x = 2,3,4,6,7)
APB1
PRESC
/ 1,2,4,8,16
CRS clock
MSIK
To APB2 peripherals
PCLK2
APB2
PRESC
/ 1,2,4,8,16
To OCTOSPI1
To SDMMC1
To ADC1,2 and DAC1
ICLK
To APB3 peripherals
PCLK3
DAC1 sample and hold clock
LSE
To LPUART1
MSIK
HSI16
MSIK
To I2C3
LSE
LSI
/ 1 to 512
MSIK
HSE
APB3
PRESC
/ 1,2,4,8,16
To RNG
MSIK
/1, 2
MSIK
HSE
To SAI1
MSIK
HSE
To ADF1
MSIK
To I3C2
MSIK
To SPI1
MSIK
To USART1
HSI16
To TIMx (x = 1,15,16,17)
x1 or x2
To AHB bus, core, memory and DMA
To RTC
OSC32_OUT
OSC32_IN
LSE OSC
32.768 kHz
Clock
detector
To LPTIM3, LPTIM4
LSCO
/ 32
To IWDG
LSI RC
32 kHz or 250 Hz
LSI
LSI
LSE
HSI16
MSIK
x2
SYSCLK
To USB1
HSE
MCO
/ 1→128
To LPTIM1
MSIS 3 - 96 MHz
MSIK 3 - 96 MHz
HSE = 16 MHz
HSE = 32 MHz
LSE = 32.768 kHz
/2
STM32U375xx
Functional overview
DS14861 - Rev 2
page 27/222



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