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STM32L552CCI3PTR bảng dữ liệu(PDF) 44 Page - STMicroelectronics

tên linh kiện STM32L552CCI3PTR
Giải thích chi tiết về linh kiện  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32L552CCI3PTR bảng dữ liệu(HTML) 44 Page - STMicroelectronics

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Functional overview
STM32L552xx
44/340
DS12737 Rev 6
The BORL (brown out detector low) can be configured in ultra-low-power mode to
further reduce power consumption during standby mode.
The device exits Standby mode when an external reset (NRST pin), an IWDG reset,
WKUP pin event (configurable rising or falling edge), or an RTC event occurs (alarm,
periodic wakeup, timestamp, tamper) or a failure is detected on LSE (CSS on LSE).
The system clock after wakeup is MSI up to 8 MHz.
•
Shutdown mode
The Shutdown mode allows to achieve the lowest power consumption. The internal
regulator is switched off so that the VCORE domain is powered off. The PLL, the
HSI16, the MSI, the LSI and the HSE oscillators are also switched off.
The RTC can remain active (Shutdown mode with RTC, Shutdown mode without RTC).
The BOR is not available in Shutdown mode. No power voltage monitoring is possible
in this mode, therefore the switch to Backup domain is not supported.
SRAM1, SRAM2 and register contents are lost except for registers in the Backup
domain.
The device exits Shutdown mode when an external reset (NRST pin), a WKUP pin
event (configurable rising or falling edge), or an RTC event occurs (alarm, periodic
wakeup, timestamp, tamper).
The system clock after wakeup is MSI at 4 MHz.



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