STM32U535NET6QTR datasheet(156/278 Pages) STMICROELECTRONICS

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Table 55. SRAM static power consumption in Stop 2 when supplied by LDO

Symbol

Parameter

Typ

Max(1)

Unit

25°C

55°C

85°C 105°C 125°C 25°C

55°C

85°C 105°C 125°C

IDD(SRAM1_64kB)(2)

SRAM1 64-Kbyte page x static consumption

(SRAM1PDSx = 1 versus SRAM1PDSx = 0)

0.9

2.1

6.3

12.6

28.5

2.8

6.3

19.0

38.0

86.0

µA

IDD(SRAM2_8KB)(3)

SRAM2 8-Kbyte page 1 static consumption

(SRAM2PDS1 = 1 versus SRAM2PDS1 = 0)

0.20.5

1.5

3.2

6.60.7

1.54.5

9.7

20.0

IDD(SRAM2_56KB)(3)

SRAM2 56-Kbyte page 2 static consumption

(SRAM2PDS2 = 1 versus SRAM2PDS2 = 0)

1.1

2.8

8.4

17.3

37.8

3.3

8.4

26.0

52.0

120.0

IDD(SRAM4)

SRAM4 static consumption

(SRAM4PDS = 1 versus SRAM4PDS = 0)

0.30.6

2.0

4.1

8.40.9

1.86.0

13.0

26.0

IDD(ICRAM)

ICACHE SRAM static consumption

(ICRAMPDS = 1 versus ICRAMPDS = 0)

0.20.4

1.3

2.7

5.60.5

1.23.9

8.2

17.0

IDD(DC1RAM)

DCACHE1 SRAM static consumption

(DC1RAMPDS = 1 versus DC1RAMPDS = 0)

0.10.2

0.8

1.6

3.00.3

0.62.4

4.99.2

IDD(PRAM)

FMAC, FDCAN and USB SRAM static consumption

(PRAMPDS = 1 versus PRAMPDS = 0)

0.10.1

0.5

0.9

1.70.3

0.31.5

2.75.1

1. Evaluated by characterization. Not tested in production.

2. SRAM1 total consumption is 3 × IDD(SRAM1_64KB).

3. SRAM2 total consumption is IDD(SRAM2_8KB) + IDD(SRAM2_56KB).

Table 56. Current consumption during wake-up from Stop 2 mode on LDO

Symbol

Parameter

Conditions

Typ

Unit

-VDD (V)

25°C

QDD(wakeup from Stop 2)

Electrical charge consumed during wake-up from

Stop 2 mode

Wake-up clock is MSI 24 MHz

3.0

0.81

nAs

Wake-up clock is HSI 16 MHz

0.79

Wake-up clock is MSI 1 MHz

1.98

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