Datasheet
Electrical characteristics STM32F745xx STM32F746xx
112/227 DocID027590 Rev 4
Table 33. 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
Supply current
in V
BAT
mode
Backup SRAM OFF, RTC and
LSE OFF
0.03 0.03 0.04 0.2 0.4
µA
Backup SRAM ON, RTC and
LSE OFF
0.74 0.75 0.78 3.0 7.0
Backup SRAM OFF, RTC ON
and LSE in low drive mode
0.40 0.52 0.72 2.8 6.5
Backup SRAM OFF, RTC ON
and LSE in medium low drive
mode
0.40 0.52 0.72 2.8 6.5
Backup SRAM OFF, RTC ON
and LSE in medium high drive
mode
0.54 0.64 0.85 3.3 7.6
Backup SRAM OFF, RTC ON
and LSE in high drive mode
0.62 0.73 0.94 3.6 8.4
Backup SRAM ON, RTC ON and
LSE in low drive mode
1.06 1.18 1.41 5.4 12.7
Backup SRAM ON, RTC ON and
LSE in Medium low drive mode
1.16 1.28 1.51 5.8 13.6
Backup SRAM ON, RTC ON and
LSE in Medium high drive mode
1.18 1.3 1.54 5.9 13.8
Backup SRAM ON, RTC ON and
LSE in High drive mode
1.36 1.48 1.73 6.7 15.5
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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