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STM32F411RET6 bảng dữ liệu(PDF) 65 Page - STMicroelectronics |
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STM32F411RET6 bảng dữ liệu(HTML) 65 Page - STMicroelectronics |
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65 / 149 page ![]() DocID026289 Rev 6 65/149 STM32F411xC STM32F411xE Electrical characteristics 123 6.3.3 Operating conditions at power-up/power-down (regulator ON) Subject to general operating conditions for TA. Table 17. Operating conditions at power-up / power-down (regulator ON) 6.3.4 Operating conditions at power-up / power-down (regulator OFF) Subject to general operating conditions for TA. Note: This feature is only available for UFBGA100 package. Table 16. 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 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 ∞ Table 18. Operating conditions at power-up / power-down (regulator OFF)(1) 1. To reset the internal logic at power-down, a reset must be applied on pin PA0 when VDD reach below 1.08 V. Symbol Parameter Conditions Min Max Unit tVDD VDD rise time rate Power-up 20 ∞ µs/V VDD fall time rate Power-down 20 ∞ tVCAP VCAP_1 and VCAP_2 rise time rate Power-up 20 ∞ VCAP_1 and VCAP_2 fall time rate Power-down 20 ∞ |
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