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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F413XG датащи(PDF) 84 Page - STMicroelectronics |
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STM32F413XG датащи(HTML) 84 Page - STMicroelectronics |
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84 / 207 page  Electrical characteristics STM32F413xG/H 84/207 DocID029162 Rev 2 6.3.2 VCAP_1/VCAP_2 external capacitors Stabilization for the main regulator is achieved by connecting the external capacitor CEXT to the VCAP_1 and VCAP_2 pins. For packages supporting only 1 VCAP pin, the 2 CEXT capacitors are replaced by a single capacitor. CEXT is specified in Table 18. Figure 23. External capacitor CEXT 1. Legend: ESR is the equivalent series resistance. 6.3.3 Operating conditions at power-up/power-down (regulator ON) Subject to general operating conditions for TA. Table 19. Operating conditions at power-up / power-down (regulator ON) Table 18. VCAP_1/VCAP_2 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 with the pins VCAP_1 and VCAP_2 available 2.2 µF ESR ESR of external capacitor with the pins VCAP_1 and VCAP_2 available < 2 Ω CEXT Capacitance of external capacitor with a single VCAP pin available 4.7 µF ESR ESR of external capacitor with a single VCAP pin available < 1 Ω Symbol Parameter Min Max Unit tVDD VDD rise time rate 20 ∞ µs/V VDD fall time rate 20 ∞ |
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