STM32F105xx, STM32F107xx
Electrical characteristics
5.1.6
Power supply scheme
Figure 8.
Power supply scheme
V
BAT
Backup circuitry
(OSC32K,RTC,
Wake-up logic
Power switch
1.8-3.6V
Backup registers)
OUT
IN
IO
Logic
GP I/Os
Kernel logic
(CPU,
Digital
& Memories)
V
DD
V
DD
1/2/3/4/5
Regulator
5 × 100 nF
+ 1 × 4.7 µF
V
SS
1/2/3/4/5
V
DD
V
DDA
V
REF
V
REF+
Analog:
RCs, PLL,
...
10 nF
+ 1 µF
10 nF
+ 1 µF
V
ADC/
DAC
REF-
V
SSA
ai14125d
Caution:
In Figure 8, the 4.7 µF capacitor must be connected to V
.
DD3
5.1.7
Current consumption measurement
Figure 9.
Current consumption measurement scheme
I
_V
DD BAT
V
BAT
I
DD
V
DD
V
DDA
ai14126
Doc ID 15274 Rev 6
33/104