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STM32L471RG bảng dữ liệu(PDF) 49 Page - STMicroelectronics

tên linh kiện STM32L471RG
Giải thích chi tiết về linh kiện  Batch acquisition mode
PDF  218 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32L471RG bảng dữ liệu(HTML) 49 Page - STMicroelectronics

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STM32L471xx
Functional overview
55
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.



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