STM32F207IC datasheet(71/163 Pages) STMICROELECTRONICS

71 / 163 page

STM32F205xx, STM32F207xx

Electrical characteristics

Doc ID 15818 Rev 7

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On-chip peripheral current consumption

The current consumption of the on-chip peripherals is given in Table 21. 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 19.

Typical and maximum current consumptions in Standby mode

Symbol

Parameter

Conditions

Typ

Max

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, RTC ON

4.8

5.2

5.8

15.1(1)

25.8(1)

µA

Backup SRAM OFF, RTC ON

4.2

4.5

5.1

12.4(1)

20.5(1)

Backup SRAM ON, RTC OFF

2.3

2.5

3.2

12.5(1)

24.8(1)

Backup SRAM OFF, RTC OFF

1.6

1.8

2.5

9.8(1)

19.2(1)

Based on characterization, not tested in production.

Table 20.

Typical and maximum current consumptions in VBAT mode

Symbol

Parameter

Conditions

Typ

Max

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, RTC ON

3.2

3.4

3.7

12(1)

19(1)

µA

Backup SRAM OFF, low-speed

oscillator and RTC ON

2.6

2.7

3.0

8(1)

10(1)

Backup SRAM ON, RTC OFF

0.7

0.8

9(1)

16(1)

Backup SRAM OFF, RTC OFF

0.1

5(1)

7(1)

Based on characterization, not tested in production.

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