STM32F205RFT6 datasheet(86/184 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F20xxx

86/184

DocID15818 Rev 15

On-chip peripheral current consumption

The current consumption of the on-chip peripherals is given in Table 26. The MCU is placed

under the following conditions:

•

At startup, all I/O pins are configured as analog inputs by firmware.

•

All peripherals are disabled unless otherwise mentioned

•

The given value is calculated by measuring the current consumption

–

with all peripherals clocked off

–

with one peripheral clocked on (with only the clock applied)

•

The code is running from Flash memory and the Flash memory access time is equal to

3 wait states at 120 MHz

•

Prefetch and Cache ON

•

When the peripherals are enabled, HCLK = 120MHz, fPCLK1 = fHCLK/4, and

fPCLK2 = fHCLK/2

•

The typical values are obtained for VDD = 3.3 V and TA= 25 °C, unless otherwise

specified.

Table 24. Typical and maximum current consumptions in Standby mode

Symbol

Parameter

Conditions

Typ

Max(1)

Unit

TA = 25 °C

TA = 85 °C TA = 105 °C

VDD =

1.8 V

VDD=

2.4 V

VDD =

3.3 V

VDD = 3.6 V

IDD_STBY

Supply current

in Standby

mode

Backup SRAM ON, low-speed

oscillator and RTC ON

3.0

3.4

4.0

15.1

25.8

µA

Backup SRAM OFF, low-

speed oscillator and RTC ON

2.4

2.7

3.3

12.4

20.5

Backup SRAM ON, RTC OFF

2.4

2.6

3.0

12.5

24.8

Backup SRAM OFF, RTC OFF

1.7

1.9

2.2

9.8

19.2

1. Guaranteed by characterization results, not tested in production.

Table 25. Typical and maximum current consumptions in VBAT mode

Symbol

Parameter

Conditions

Typ

Max(1)

Unit

TA = 25 °C

TA = 85 °C TA = 105 °C

VDD =

1.8 V

VDD=

2.4 V

VDD =

3.3 V

VDD = 3.6 V

IDD_VBAT

Backup

domain supply

current

Backup SRAM ON, low-speed

oscillator and RTC ON

1.29

1.42

1.68

µA

Backup SRAM OFF, low-speed

oscillator and RTC ON

0.62

0.73

0.96

Backup SRAM ON, RTC OFF

0.79

0.81

0.86

Backup SRAM OFF, RTC OFF

0.10

1. Guaranteed by characterization results, not tested in production.

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