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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F303VE датащи(PDF) 74 Page - STMicroelectronics |
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STM32F303VE датащи(HTML) 74 Page - STMicroelectronics |
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74 / 184 page  Electrical characteristics STM32F303xD STM32F303xE 74/184 DocID026415 Rev 4 6.3.2 Operating conditions at power-up / power-down The parameters given in Table 20 are derived from tests performed under the ambient temperature condition summarized in Table 19. 6.3.3 Embedded reset and power control block characteristics The parameters given in Table 21 are derived from tests performed under ambient temperature and VDD supply voltage conditions summarized in Table 19. Table 20. Operating conditions at power-up / power-down Symbol Parameter Conditions Min Max Unit tVDD VDD rise time rate - 0 ∞ µs/V VDD fall time rate 20 ∞ tVDDA VDDA rise time rate - 0 ∞ VDDA fall time rate 20 ∞ Table 21. Embedded reset and power control block characteristics Symbol Parameter Conditions Min. Typ. Max. Unit VPOR/PDR(1) 1. The PDR detector monitors VDD and also VDDA (if kept enabled in the option bytes). The POR detector monitors only VDD. Power on/power down reset threshold Falling edge 1.8(2) 2. The product behavior is guaranteed by design down to the minimum VPOR/PDR value. 1.88 1.96 V Rising edge 1.84 1.92 2.0 V VPDRhyst(1) PDR hysteresis - - 40 - mV |
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