AN3316 datasheet(36/42 Pages) STMICROELECTRONICS

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Consumption tables

AN3316

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Doc ID 18232 Rev 2

So, the HALT lowest consumption is 1.21 mA obtained with following configuration:

–

FIRC on

 0.6 mA

–

sysclk = FIRC/32

 PD0 conso = 0.0668 * 0.5 + 0.5791

–

all others modules/peripherals off

As an example, consider following HALT mode configuration with fsys = 64 MHz and all

peripherals clocked at 32 MHz

3.2.2

STOP consumption

This table shows modules consumption contributions in STOP mode:

Table 11.

HALT mode consumption example

Status

Formula(mA)

Conso(mA)

FIRC-16MHz

0.6

FOSC-6MHz

1.78

PLL

0.0303 * fsys

1.9392

CFLASH

Normal

Low Power

Normal

7.22

0.89

7.22

DFLASH

Power Down

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*64 + 0.5791

4.8543

PDI(2)

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

pheripherals

mA = 0.2092*32 + 0.077

6.7714

Total conso evaluated

25.2249

Total conso measured

25.41

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