AN1014 datasheet(9/25 Pages) STMICROELECTRONICS

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AN1014 数据表(PDF) 9 Page - STMicroelectronics

部件名	AN1014

功能描述	HOW TO MINIMIZE THE ST7 POWER CONSUMPTION

PDF	25 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

9 / 25 page

9/25

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

3.49 mA

3.91 mA

4.39 mA

5.20 mA

5.92 mA

6.62 mA

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