STM32F302X8 datasheet(17/139 Pages) STMICROELECTRONICS

Part #	STM32F302X8

Description	Arm® Cortex®-M4 32-bit MCUFPU, up to 64 KB Flash, 16 KB SRAM, ADC, DAC, USB, CAN, COMP, Op-Amp, 2.0 - 3.6 V

PDF	139 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 139 page

DS9896 Rev 8

17/139

STM32F302x6 STM32F302x8

Functional overview

Figure 2. Clock tree

/32

4-32 MHz

HSE OSC

OSC_IN

OSC_OUT

OSC32_IN

OSC32_OUT

8 MHz

HSI RC

IWDGCLK

to IWDG

PLL

x2,x3,..

x16

PLLMUL

MCO

AHB

PLLCLK

HSI

HSE

APB1

prescaler

/1,2,4,8,16

HCLK

PLLCLK

to AHB bus, core,

memory and DMA

LSE

LSI

HSI

HSE

to RTC

PLLSRC

MCO

SYSCLK

RTCCLK

RTCSEL[1:0]

SYSCLK

to TIM 2, 6, 7

If (APB1 prescaler

=1) x1 else x2

FLITFCLK

to Flash programming interface

LSI

to I2Cx (x = 1,2,3)

to USART1

LSE

HSI

SYSCLK

PCLK1

SYSCLK

HSI

PCLK1

MS32687V4

to I2Sx (x = 2,3)

to cortex System timer

FHCLK Cortex free

running clock

to APB1 peripherals

AHB

prescaler

/1,2,..512

CSS

/2,/3,...

/16

LSE OSC

32.768kHz

LSI RC

40kHz

APB2

prescaler

/1,2,4,8,16

If (APB2 prescaler

=1) x1 else x2

PCLK2

to APB2 peripherals

TIM1, 15, 16, 17

ADC

Prescaler

/1,2,4

to ADC1

ADC

Prescaler

/1,2,4,6,8,10,12,16,

32,64,128,256

I2SSRC

SYSCLK

Ext. clock

I2S_CKIN

USBCLK

to USB interface

USB

prescaler

/1,1.5

Main clock

output

/1,2,4,

...128

MCOPRE

PLLNODIV

STM32F302X8 Datasheet(PDF) 17 Page - STMicroelectronics

STM32F302X8 Datasheet(HTML) 17 Page - STMicroelectronics

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