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STM32L475RC bảng dữ liệu(PDF) 47 Page - STMicroelectronics

tên linh kiện STM32L475RC
Giải thích chi tiết về linh kiện  Ultra-low-power ARM Cortex-M4 32-bit MCUFPU, 100DMIPS, up to 1MB Flash, 128 KB SRAM, USB OTG FS, analog, audio
PDF  193 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32L475RC bảng dữ liệu(HTML) 47 Page - STMicroelectronics

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STM32L475xx
Functional overview
53
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 using baudrates up to 220 Kbaud. 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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