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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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STM32F215RG Datenblatt(PDF) 65 Page - STMicroelectronics |
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STM32F215RG Datenblatt(HTML) 65 Page - STMicroelectronics |
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65 / 173 page  STM32F21xxx Electrical characteristics Doc ID 17050 Rev 8 65/173 Figure 18. Number of wait states versus fCPU and VDD range 5.3.2 VCAP1/VCAP2 external capacitor Stabilization for the main regulator is achieved by connecting an external capacitor to the VCAP1/VCAP2 pins. CEXT is specified in Table 13. Figure 19. External capacitor CEXT 1. Legend: ESR is the equivalent series resistance. ai18748b 0 1 2 3 4 5 6 7 8 Fcpu (MHz) Wait states vs Fcpu and VDD range 1.8 to 2.1V 2.1 to 2.4V 2.4 to 2.7V 2.7 to 3.6V Table 13. VCAP1/VCAP2 operating conditions(1) 1. When bypassing the voltage regulator, the two 2.2 µF VCAP capacitors are not required and should be replaced by two 100 nF decoupling capacitors. Symbol Parameter Conditions CEXT Capacitance of external capacitor 2.2 µF ESR ESR of external capacitor < 2 Ω MS19044V1 ESR R Leak C |
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