參數(shù)資料
型號: ST72T141K2MARE
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
封裝: 0.300 INCH, LEAD FREE, PLASTIC, SOP-34
文件頁數(shù): 52/131頁
文件大?。?/td> 3096K
代理商: ST72T141K2MARE
ST72141K2-Auto
27/131
5 POWER SAVING MODES
5.1 INTRODUCTION
To give a large measure of flexibility to the applica-
tion in terms of power consumption, three main
power saving modes are implemented in the ST7
(see Figure 18).
After a RESET the normal operating mode is se-
lected 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 divided by 2 (fCPU).
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 18. Power saving mode consumption / transitions
POWER CONSUMPTION
WAIT
SLOW
RUN
HALT
High
Low
SLOW WAIT
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