STM32L471RG datasheet(49/218 Pages) STMICROELECTRONICS

Il numero della parte	STM32L471RG

Spiegazioni elettronici	Batch acquisition mode

PDF	218 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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STM32L471xx

Functional overview

3.27

Low-power universal asynchronous receiver transmitter

(LPUART)

The device embeds one Low-Power UART. The LPUART supports asynchronous serial

communication with minimum power consumption. It supports half duplex single wire

communication and modem operations (CTS/RTS). It allows multiprocessor

communication.

The LPUART has a clock domain independent from the CPU clock, and can wakeup the

system from Stop mode. The wake up events from Stop mode are programmable and can

be:

•

Start bit detection

•

Any received data frame

•

A specific programmed data frame

Only a 32.768 kHz clock (LSE) is needed to allow LPUART communication up to 9600

baud. Therefore, even in Stop mode, the LPUART can wait for an incoming frame while

having an extremely low energy consumption. Higher speed clock can be used to reach

higher baudrates.

LPUART interface can be served by the DMA controller.

STM32L471RG Scheda tecnica(PDF) 49 Page - STMicroelectronics