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STM32L4P5CEI3 Folha de dados(PDF) 24 Page - STMicroelectronics |
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STM32L4P5CEI3 Folha de dados(HTML) 24 Page - STMicroelectronics |
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24 / 311 page  Functional overview STM32L4P5xx 24/311 DS12903 Rev 2 An embedded linear voltage-regulator is used to supply the internal digital power VCORE. VCORE is the power supply for digital peripherals, SRAM1, SRAM2 and SRAM3. The Flash is supplied by VCORE and VDD. Figure 2. STM32L4P5xx power supply overview MSv49328V1 VDDA domain Backup domain Standby circuitry (Wakeup logic, IWDG) Voltage regulator Low voltage detector LSE crystal 32 K osc BKP registers RCC BDCR register RTC I/O ring VCORE domain Temp. sensor Reset block 3 x PLL, HSI, MSI Flash memory USB transceivers VDDUSB VDDIO2 VDDIO1 I/O ring PG[15:2] VDDIO2 VDDA VSSA VSS VSS VDDIO2 domain VDD domain VCORE VSS VDD VBAT Core SRAM1 SRAM2 SRAM3 Digital peripherals 2 x D/A converters 1 x A/D converter 2 x comparators 2 x operational amplifiers Voltage reference buffer |
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