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ST72141K2 Scheda tecnica(PDF) 28 Page - STMicroelectronics

Il numero della parte ST72141K2
Spiegazioni elettronici  8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE
PDF  132 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72141K2 Scheda tecnica(HTML) 28 Page - STMicroelectronics

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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 19).
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 the oscil-
lator status.
Figure 19. Power saving mode consumption / transitions
POWER CONSUMPTION
WAIT
SLOW
RUN
HALT
High
Low
SLOW WAIT



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