AN3316 datasheet(35/42 Pages) STMICROELECTRONICS

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AN3316

Consumption tables

Doc ID 18232 Rev 2

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3.2

Low Power modes

Following tables show how to calculate low power modes (HALT/STOP/STANDBY)

consumption respectively, summing the contributions of each module

3.2.1

HALT consumption

This table shows modules consumption contributions in HALT mode:

Table 9.

RUN0 mode consumption example

Status

Formula (mA)

Conso (mA)

FIRC-16MHz

0.6

FOSC-8Mhz

1.78

PLL

0.0303 * fsys

0.4848

CFLASH

Normal

Low Power

Normal

7.22

0.89

7.22

DFLASH

Power

Down

Low Power

Normal

4.29

0.6

4.29

MVREG

Always On

1.06

Platform + PD0

0.4434 * fsys + 0.7765

7.8709

Total conso evaluated

23.3057

Total conso measured

23.51

Table 10.

HALT mode consumption table

conso(mA)

FIRC-16MHz

0.6

FOSC-6MHz

1.78

PLL

mA = 0.0303 * MHz

CFLASH

Low Power

Normal

0.89

7.22

DFLASH

Low Power

Normal

0.6

4.29

MVREG

1.06

PD0(1)(always on)

Core/Platform + Power Domain 0 (always On) consumption

mA = 0.0668 * MHz + 0.5791

PDI(2)

Consumption of Power Domain 1 that depends on the system clock (divided or not) provided to the

pheripherals

mA = 0.2092 * MHz + 0.077

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