Datasheet

Electrical characteristics STM32F427xx STM32F429xx
106/239 DocID024030 Rev 10
Table 28. Typical and maximum current consumptions in Standby mode
Symbol Parameter Conditions
Typ
(1)
Max
(2)
Unit
T
A
= 25 °C
T
A
=
25 °C
T
A
=
85 °C
T
A
=
105 °C
V
DD
=
1.7 V
V
DD
=
2.4 V
V
DD
=
3.3 V
V
DD
= 3.6 V
I
DD_STBY
Supply current
in Standby
mode
Backup SRAM ON, low-speed
oscillator (LSE) and RTC ON
2.80 3.00 3.60 7.00 19.00 36.00
µA
Backup SRAM OFF, low-
speed oscillator (LSE) and
RTC ON
2.30 2.60 3.10 6.00 16.00 31.00
Backup SRAM ON, RTC and
LSE OFF
2.30 2.50 2.90 6.00
(3)
18.00
(3)
35.00
(3)
Backup SRAM OFF, RTC and
LSE OFF
1.70 1.90 2.20 5.00
(3)
15.00
(3)
30.00
(3)
1. The typical current consumption values are given with PDR OFF (internal reset OFF). When the PDR is OFF (internal reset
OFF), the typical current consumption is reduced by additional 1.2 µA.
2. Based on characterization, not tested in production unless otherwise specified.
3. Based on characterization, tested in production.
Table 29. Typical and maximum current consumptions in V
BAT
mode
Symbol Parameter Conditions
(1)
Typ Max
(2)
Unit
T
A
= 25 °C T
A
= 85 °C
T
A
=
105 °C
V
BAT
=
1.7 V
V
BAT
=
2.4 V
V
BAT
=
3.3 V
V
BAT
= 3.6 V
I
DD_VBAT
Backup
domain supply
current
Backup SRAM ON, low-speed
oscillator (LSE) and RTC ON
1.28 1.40 1.62 6 11
µA
Backup SRAM OFF, low-speed
oscillator (LSE) and RTC ON
0.66 0.76 0.97 3 5
Backup SRAM ON, RTC and
LSE OFF
0.70 0.72 0.74 5 10
Backup SRAM OFF, RTC and
LSE OFF
0.10 0.10 0.10 2 4
1. Crystal used: Abracon ABS07-120-32.768 kHz-T with a C
L
of 6 pF for typical values.
2. Guaranteed by characterization results.
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