Electrical characteristics
STM32F103xC, STM32F103xD, STM32F103xE
5.1.6
Power supply scheme
Figure 12. Power supply scheme
V
BAT
Backup circuitry
(OSC32K,RTC,
Power switch
1.8-3.6V
Wake-up logic
Backup registers)
OUT
IO
Logic
GP I/Os
IN
Kernel logic
(CPU,
Digital
& Memories)
V
DD
V
DD1/2/.../11
Regulator
11 × 100 nF
+ 1 × 4.7 µF
V
SS1/2/.../11
V
DD
V
DDA
V
REF
V
REF+
Analog:
RCs, PLL,
...
10 nF
+ 1 µF
10 nF
+ 1 µF
V
ADC
REF-
V
SSA
ai15401
Caution:
In Figure 12, the 4.7 µF capacitor must be connected to V
.
DD3
5.1.7
Current consumption measurement
Figure 13. Current consumption measurement scheme
I
_V
DD BAT
V
BAT
I
DD
V
DD
V
DDA
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Doc ID 14611 Rev 7