ST7MC1K2 datasheet(71/371 Pages) STMICROELECTRONICS

Numer części	ST7MC1K2

Szczegółowy opis	Clock, reset and supply management

PDF	371 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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71 / 371 page

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Power saving modes

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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 21): Slow, Wait (Slow

Wait), Active Halt and 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 divided or multiplied by 2 (fOSC2).

From Run mode, the different power saving modes may be selected by setting the relevant

oscillator status.

Figure 21.

Power saving mode transitions

Power consumption

Wait

Slow

Run

Active Halt

High

Low

Slow Wait

Halt

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ST7MC1K2 Arkusz danych(PDF) 71 Page - STMicroelectronics