STM32L072KB datasheet(20/147 Pages) STMICROELECTRONICS

Part #	STM32L072KB

Description	Ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, USB, ADC, DACs

PDF	147 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Functional overview

STM32L072xx

20/147

DocID027100 Rev 3

3.2

Interconnect matrix

Several peripherals are directly interconnected. This allows autonomous communication

between peripherals, thus saving CPU resources and power consumption. In addition,

these hardware connections allow fast and predictable latency.

Depending on peripherals, these interconnections can operate in Run, Sleep, Low-power

run, Low-power sleep and Stop modes.

Table 6. STM32L0xx peripherals interconnect matrix

Interconnect

source

Interconnect

destination

Interconnect action

Run Sleep

Low-

power

run

Low-

power

sleep

Stop

COMPx

TIM2,TIM21,

TIM22

Timer input channel,

trigger from analog

signals comparison

LPTIM

Timer input channel,

trigger from analog

signals comparison

TIMx

Timer triggered by other

timer

RTC

TIM21

Timer triggered by Auto

wake-up

LPTIM

Timer triggered by RTC

event

All clock

source

TIMx

Clock source used as

input channel for RC

measurement and

trimming

USB

CRS/HSI48

the clock recovery

system trims the HSI48

based on USB SOF

TIM3

USB_SOF is channel

input for calibration

GPIO

TIMx

Timer input channel and

trigger

LPTIM

Timer input channel and

trigger

ADC,DAC

Conversion trigger

STM32L072KB Datasheet(PDF) 20 Page - STMicroelectronics

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