STM32F030R4P6TR(2013) 查看數據表（PDF） - STMicroelectronics

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STM32F030R4P6TR
(Rev.:2013)

Value-line ARM®-based 32-bit MCU with up to 256-KB Flash, timers, ADC, communication interfaces, 2.4-3.6 V operation

STMicroelectronics 

STM32F030x4 STM32F030x6 STM32F030x8

Functional overview

Figure 2. Clock tree

HSI

SYSCLK

FLITFCLK

to Flash programming interface

to I2C1

8 MHz HSI

HSI RC

/2

PLLSRC

PLLMUL

SW

HSI

PLL PLLCLK

x2,x3,..

x16

HSE

/1,2,

3,..16

CSS

AHABHB

prescaler

/1,2,..512

SYSCLK

LSE

/244

HCLK

/8

APB

prescaler

/1,2,4,8,16

to AHB bus, core,

memory and DMA

to cortex System timer

FHCLK Cortex free running clock

PCLK

to APB peripherals

If (APB1 prescaler

=1) x1 else x2

to TIM1,3,6,

14,15,16,17

OSC_OUT

OSC_IN

4-32 MHz

HSE OSC

14 MHz HSI14

HSI14 RC

ADC

Prescaler

/2,4

to ADC

14 MHz max

OSC32_IN

OSC32_OUT

/32

LSE OSC LSE

32.768kHz

RTCCLK

RTCSEL[1:0]

to RTC

PCLK

SYSCLK

HSI

LSE

to USART1

MCO

LSI RC

LSI

40kHz

Main clock

output

/2 PLLCLK

HSI

HSI14

HSE

SYSCLK

LSI (1)

LSE (1)

MCO

to IWDG

MS32138V1

1. LSI/LSE is not available on STM32F030x8 devices.

DocID024849 Rev 1

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