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AN1014 Datasheet(PDF) 9 Page - STMicroelectronics

Part # AN1014
Description  HOW TO MINIMIZE THE ST7 POWER CONSUMPTION
PDF  25 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN1014 Datasheet(HTML) 9 Page - STMicroelectronics

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HOW TO MINIMIZE THE ST7 POWER CONSUMPTION
Measurements:
Table 4. Consumption IDD (Wait Mode) at TA = + 25 °C
6.1.2.4 Slow-Wait Mode
Methodology: A resonator oscillator is used with fosc at 4 / 8 MHz. PLL*2 is disabled. So, fosc2
is fosc/2. All peripherals are in reset configuration except the ports and the SMS bit in the
MCCSR is set to 1. The CP1 and CP0 bits in the MCCSR are set to an appropriate value.
Hence fCPU is fosc /4, fosc/8, fosc/16, fosc/32. All ports are set as Push-Pull Outputs with low
level.
fOSC(MHz)
fCPU(MHz)
IDD at VDD = 4.5 V
IDD at VDD = 5 V
IDD at VDD = 5.5 V
42
3.49 mA
3.91 mA
4.39 mA
84
5.20 mA
5.92 mA
6.62 mA



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