参数资料
型号: STM32F205RET6TR
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, ROHS COMPLIANT, LQFP-64
文件页数: 81/163页
文件大小: 2275K
代理商: STM32F205RET6TR
Description
STM32F205xx, STM32F207xx
Doc ID 15818 Rev 7
2.2.19
Low-power modes
The STM32F205xx and STM32F207xx support three low-power modes to achieve the best
compromise between low power consumption, short startup time and available wakeup
sources:
Sleep mode
In Sleep mode, only the CPU is stopped. All peripherals continue to operate and can
wake up the CPU when an interrupt/event occurs.
Stop mode
The Stop mode achieves the lowest power consumption while retaining the contents of
SRAM and registers. All clocks in the 1.2 V domain are stopped, the PLL, the HSI RC
and the HSE crystal oscillators are disabled. The voltage regulator can also be put
either in normal or in low-power mode.
The device can be woken up from the Stop mode by any of the EXTI line. The EXTI line
source can be one of the 16 external lines, the PVD output, the RTC alarm / wakeup /
tamper / time stamp events, the USB OTG FS/HS wakeup or the Ethernet wakeup.
Standby mode
The Standby mode is used to achieve the lowest power consumption. The internal
voltage regulator is switched off so that the entire 1.2 V domain is powered off. The
PLL, the HSI RC and the HSE crystal oscillators are also switched off. After entering
Standby mode, the SRAM and register contents are lost except for registers in the
backup domain and the backup SRAM when selected.
The device exits the Standby mode when an external reset (NRST pin), an IWDG reset,
a rising edge on the WKUP pin, or an RTC alarm / wakeup / tamper /time stamp event
occurs.
Note:
The RTC, the IWDG, and the corresponding clock sources are not stopped when the device
enters the Stop or Standby mode.
2.2.20
VBAT operation
The VBAT pin allows to power the device VBAT domain from an external battery or an
external supercapacitor.
VBAT operation is activated when VDD is not present.
Note:
When the microcontroller is supplied from VBAT, external interrupts and RTC alarm/events
do not exit it from VBAT operation.
相关PDF资料
PDF描述
STM32F205RET6XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
STM32F205RET7XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
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STM32F205RFT6TR 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
STM32F205RFT7XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
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