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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F302x8 датащи(PDF) 59 Page - STMicroelectronics |
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STM32F302x8 датащи(HTML) 59 Page - STMicroelectronics |
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59 / 138 page  DocID025147 Rev 6 59/138 STM32F302x6 STM32F302x8 Electrical characteristics 117 6.3.2 Operating conditions at power-up / power-down The parameters given in Table 23 are derived from tests performed under the ambient temperature condition summarized in Table 22. 6.3.3 Embedded reset and power control block characteristics The parameters given in Table 24 are derived from tests performed under ambient temperature and VDD supply voltage conditions summarized in Table 22. Table 23. 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 24. 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 tRSTTEMPO(3) 3. Based on characterization, not tested in production. POR reset temporization - 1.5 2.5 4.5 ms |
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