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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F215VG датащи(PDF) 66 Page - STMicroelectronics |
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STM32F215VG датащи(HTML) 66 Page - STMicroelectronics |
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66 / 175 page  Electrical characteristics STM32F21xxx 66/175 DocID17050 Rev 9 6.1.6 Power supply scheme Figure 17. Power supply scheme 1. Each power supply pair must be decoupled with filtering ceramic capacitors as shown above. These capacitors must be placed as close as possible to, or below, the appropriate pins on the underside of the PCB to ensure the good functionality of the device. 2. To connect REGOFF pin, refer to Section 3.16: Voltage regulator. 3. The two 2.2 µF ceramic capacitors should be replaced by two 100 nF decoupling capacitors when the voltage regulator is OFF. 4. The 4.7 µF ceramic capacitor must be connected to one of the VDD pin. MS19041V2 VDD 1/2/...14/15 Analog: RCs, PLL, ... Po wer swi tch VBAT GP I/O s OUT IN Kernel logic (CPU, digital & RAM) Backup circuitry (OSC32K,RTC, Backup registers, backup RAM) Wakeup logic 15 × 100 nF + 1 × 4.7 μF 1.8-3.6 V Voltage regulator VSS 1/2/...14/15 VDDA VREF+ VREF- VSSA ADC IO Logic VDD 100 nF + 1 μF VREF 100 nF + 1 μF VDD Flash memory VCAP_1 VCAP_2 2 × 2.2 μF REGOFF |
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