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STM32L552CCT3PTR Datasheet(PDF) 52 Page - STMicroelectronics

Part # STM32L552CCT3PTR
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
PDF  340 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L552CCT3PTR Datasheet(HTML) 52 Page - STMicroelectronics

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Functional overview
STM32L552xx
52/340
DS12737 Rev 6
Figure 7. STM32L552xx clock tree
MSv49302V2
SYSCLK
MCO
LSCO
PLL
SAI2_EXTCLK
48 MHz clock to USB, RNG
to ADC
to IWDG
to RTC
to PWR
HCLK
to AHB bus, core, memory and DMA
FCLK Cortex free running clock
to Cortex system timer
to APB1 peripherals
to APB2 peripherals
PCLK1
PCLK2
to SAI1
to SAI2
LSE
HSI16
SYSCLK
to USARTx
X=2..5
to LPUART1
to I2Cx
x=1,2,3,4
to LPTIMx
x=1,2
SAI1_EXTCLK
to TIMx
x=2..7
OSC32_OUT
OSC32_IN
MSI
HSI16
HSE
HSE
MSI
HSI16
MSI
SYSCLK
LSE OSC
32.768 kHz
/32
AHB PRESC
/ 1,2,..512
/ 8
APB1 PRESC
/ 1,2,4,8,16
x1 or x2
HSI16
SYSCLK
LSI
LSE
HSI16
APB2 PRESC
/ 1,2,4,8,16
to TIMx
x=1,8,15,16,17
x1 or x2
to
USART1
LSE
HSI16
SYSCLK
/ P
/ Q
/ R
PLLSAI1
/ P
/ Q
/ R
/ M
MSI RC
100 kHz – 48 MHz
HSI RC
16 MHz
HSE OSC
4-48 MHz
Clock
detector
OSC_OUT
OSC_IN
/ 1→16
LSI RC 32 kHz
Clock
source
control
PLLSAI3CLK
PLL48M1CLK
PLLCLK
PLLSAI1CLK
PLL48M2CLK
PLLADC1CLK
PLLSAI2CLK
HSI16
HSI16
HSI16
PLLSAI2
/ P
/ Q
/ R
HSI16
LSI
LSE
HSE
SYSCLK
PLLCLK
HSI48
MSI
OCTOSPI clock
MSI
MSI
HSI16
DFSDM
audio clock
SDMMC clock
/ M
/ M
RC 48 MHz
CRS clock
FDCAN
HSE
MSI
HSI16
HSE
MSI
HSI16
HSE
To UCPD1
HSI16
48
MHz



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