57.3.1 Backup Mode Current Consumption and Wakeup
Time
The Backup mode configurations and measurements are defined as follows:
Embedded slow clock RC oscillator is enabled
Supply Monitor on VDDIO is disabled
RTC is running
RTT is enabled on 1 Hz mode
BOD is disabled
One WKUPx enabled
Current measurement on AMP1 with and without the 1 Kbyte backup SRAM
Measurements are made at ambient temperature
Figure 57-5. Measurement Setup
Table 57-11. Worst Case Power Consumption for Backup Mode with 1 Kbyte BACKUP SRAM On
Total Consumption
Worst Case Value
Unit
at 25°C
at 85°C
at 105°C
Conditions
AMP1
AMP1
AMP1
VDDIO = 3.6V
8.4
42
64
µA
VDDIO = 3.3V
8
39
61
µA
VDDIO = 3.0V
7.6
38
59
µA
Table 57-12. Worst Case Power Consumption for Backup Mode with 1 Kbyte BACKUP SRAM Off
Total Consumption
Worst Case Value
Unit
at 25°C
at 85°C
at 105°C
Conditions
AMP1
AMP1
AMP1
VDDIO = 3.6V
5.1
16.4
24
µA
VDDIO = 3.3V
3.7
14.8
23
µA
VDDIO = 3.0V
3.4
13.2
22
µA
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