參數(shù)資料
型號： ST7FLU05MAE
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù)： 65/124頁
文件大?。?/td> 2186K
代理商： ST7FLU05MAE
Obsolete
Product(s)
- Obsolete
Product(s)
ST7LUS5, ST7LU05, ST7LU09
Power saving modes
45/124
8
Power saving modes
8.1
Introduction
To give a large measure of flexibility to the application in terms of power consumption, five
main power saving modes are implemented in the ST7 (see Figure 21):
●
Slow
●
Wait (and slow wait)
●
Active halt
●
Auto wake-up from halt (AWUFH)
●
Halt
After a reset the normal operating mode is selected by default (run mode). This mode drives
the device (CPU and embedded peripherals) by means of a master clock which is based on
the main oscillator frequency (fOSC).
From run mode, the different power saving modes may be selected by setting the relevant
register bits or by calling the specific ST7 software instruction whose action depends on the
oscillator status.
Figure 17.
Power saving mode transitions
8.2
Slow mode
This mode has two targets:
●
To reduce power consumption by decreasing the internal clock in the device
●
To adapt the internal clock frequency (fCPU) to the available supply voltage.
Slow mode is controlled by the SMS bit in the MCCSR register which enables or disables
slow mode.
Wait
Slow
Run
Active halt
High
Low power consumption
Slow wait
Halt
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ST7FMC1K2T6 功能描述:8位微控制器 -MCU 8K Flash 384 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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