Datasheet

DocID17659 Rev 9 49/131
STM32L151x6/8/B, STM32L152x6/8/B Electrical characteristics
105
6.1.6 Power supply scheme
Figure 12. Power supply scheme
MS32461V1
V
DD1/2/.../N
Analog:
RCs,
PLL,...
GP I/Os
OUT
IN
Kernel logic
(CPU, Digital
& Memories)
Standby-power circuitry
(OSC32K,RTC,
RTC backup registers)
Wake-up logic
N × 100 nF
+ 1 × 10 μF
Regulator
V
SS1/2/.../N
V
DDA
V
REF+
V
REF-
V
SSA
ADC/
DAC
Level shifter
IO
Logic
V
DD
100 nF
+ 1 μF
V
REF
100 nF
+ 1 μF
V
DDA