STM32U385CG datasheet(108/224 Pages) STMICROELECTRONICS

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Symbol

Parameter

Conditions

Typ

Max(2)

Unit

VDD

25°C

55°C

85°C

105°C

30°C

55°C

85°C

105°C

IDD

(Stop 2

with

RTC)

Supply current in

Stop 2 mode, RTC(1)

clocked by LSI

250 Hz, 8 KB

SRAM2 + ICACHE

retained

1.8

41.5

125

255

130

380

770

µA

2.4

42.5

130

255

130

390

770

130

260

130

390

780

3.3

130

260

130

390

780

3.6

13.5

130

260

140

390

780

Supply current in

Stop 2 mode, RTC(1)

clocked by LSE

bypassed at

32768 Hz, 8 KB

SRAM2 + ICACHE

retained

1.8

13.0

125

255

130

380

770

2.4

130

255

130

390

770

130

260

130

390

780

3.3

13.5

43.5

130

260

140

390

780

3.6

14.0

135

260

140

410

780

Supply current in

Stop 2 mode, RTC(1)

clocked by LSE

quartz in low-drive

mode,

RCC_BDCR.LSESY

SEN = 0, 8 KB

SRAM2 + ICACHE

retained

1.8

41.5

125

250

2.4

130

255

42.5

130

255

3.3

130

255

3.6

13.5

130

260

Supply current in

Stop 2 mode, RTC(1)

clocked by LSE

quartz in low-drive

mode,

RCC_BDCR.LSESY

SEN = 1, 8 KB

SRAM2 + ICACHE

retained

1.8

41.5

125

250

2.4

42.5

130

255

42.5

130

255

3.3

13.5

130

255

3.6

130

260

1. RTC with default configuration but RTC_CALR.LPCAL = 1

2. Evaluated by characterization. Not tested in production.

Table 50. SRAM static power consumption in Stop 2 when supplied by LDO

Symbol

Parameter

Typ

Max(3)

Unit

25°C

55°C

85°C

105°C

30°C

55°C

85°C

105°C

IDD (SRAM1_16kB)(1)

SRAM1 16-Kbyte page x (x = 1, or 2)

static consumption (SRAM1PDSx =

1 vs. SRAM1PDSx = 0)

0.21

0.41

1.65

3.95

0.74

1.30

µA

IDD (SRAM1_32kB)(1)

SRAM1 32-Kbyte page x (x = 3, ...,

6, or 7) static consumption

(SRAM1PDSx = 1 vs.

SRAM1PDSx = 0)

0.38

0.86

3.25

7.40

1.40

2.60

9.8

IDD (SRAM2_32kB)(2)

SRAM2 32-Kbyte page 1 static

consumption (SRAM2PDS1 = 1 vs.

SRAM2PDS1 = 0)

0.47

1.20

4.25

9.50

1.70

3.60

IDD (SRAM2_24kB)(2)

SRAM2 24-Kbyte page 2 static

consumption (SRAM2PDS2 = 1 vs.

SRAM2PDS2 = 0)

0.35

0.85

3.25

7.2

1.30

2.60

IDD (SRAM2_8kB)(2)

SRAM2 8-Kbyte page 3 static

consumption (SRAM2PDS3 = 1 vs.

SRAM2PDS3 = 0)

0.18

0.25

1.10

2.37

0.65

0.75

3.3

7.2

STM32U385xx

Electrical characteristics

DS14830 - Rev 2

page 108/224

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