STM32L151XE datasheet(22/136 Pages) STMICROELECTRONICS

номер детали	STM32L151XE

подробное описание детали	Ultra-low-power 32-bit MCU Arm®-based Cortex®-M3 with 512KB Flash, 80KB SRAM, 16KB EEPROM, LCD, USB, ADC, DAC

PDF	136 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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22 / 136 page

Functional overview

STM32L151xE STM32L152xE

22/136

DS10002 Rev 10

Figure 2. Clock tree

MS18583V1

LSI RC

LSE OSC

HSI RC

HSE

OSC

@V33

@VDDCORE

@V33

level shifters

PLL

X 3,4,6,8,12

@V33

level shifters

LSE tempo

1 MHz clock

detector

@V33

Watchdog

ck_pllin

source

control

Clock

Watchdog

enable

RTC enable

ck_hsi

ck_hse

HSE present or not

LSI tempo

ck_pll

AHB

prescaler

/ 1,2,..512

APB2

/ 1,2,4,8,16

APB1

/ 1,2,4,8,16

ck_usb = Vco / 2 (Vco must be at 96 MH

/ 8

CK_TIMSYS

CK_CPU

CK_FCLK

CK_PWR

CK_USB48

CK_TIMTGO

CK_APB1

CK_APB2

usben and (not deepsleep)

timer9en and (not deepsleep)

apb1 periphen and (not deepsleep)

apb2 periphen and (not deepsleep)

not (sleep or

deepsleep)

not (sleep or

deepsleep

not deepsleep

Standby supplied voltage domain

System

clock

MCO

if (APB1 presc = 1)x1

else

16,24,32,48

ck_lse

CK_LCD

/ 2, 3, 4

1 MHz

@VDDCORE

/ 1,2,4,8,16

LCD enable

MSI RC

@V33

@VDDCORE

level shifters

ck_msi

ck_lsi

CK_ADC

ADC enable

LS LS

/ 2,4,8,16

prescaler

Radio Sleep Timer

RTC

Radio Sleep Timer enable

STM32L151XE датащи(PDF) 22 Page - STMicroelectronics

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