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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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ST7LITEUS5 数据表(PDF) 48 Page - STMicroelectronics |
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ST7LITEUS5 数据表(HTML) 48 Page - STMicroelectronics |
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48 / 136 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) Power saving modes ST7LITEUS2, ST7LITEUS5 48/136 8 Power saving modes 8.1 Introduction To give a large measure of flexibility to the application in terms of power consumption, four main power saving modes are implemented in the ST7 (see Figure 18): ● Slow ● Wait (and Slow-wait) ● Active-halt ● Auto-wakeup 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 18. Power saving mode transitions POWER CONSUMPTION Wait Slow Run Active halt High Low Slow wait Halt Obsolete Product(s) - Obsolete Product(s) |
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