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STR910FAM32 数据表(PDF) 67 Page - STMicroelectronics |
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STR910FAM32 数据表(HTML) 67 Page - STMicroelectronics |
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67 / 101 page ![]() STR91xFAx3x, STR91xFAx4x Electrical characteristics 67/101 7.7.3 RTC oscillator electrical characteristics VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified. Table 20. RTC oscillator electrical characteristics Symbol Parameter Test Conditions Value Unit Min Typ Max gM(RTC) Oscillator Start _voltage(1) 1. Data based on bench measurements, not tested in production. VDD_LVD+ (2) 2. Refer to Table 14 for min. value of VDD_LVD+ V tSTUP(RTC) Oscillator Start-up Time (1) VDD stable 1 S Table 21. RTC crystal electrical characteristics Symbol Parameter Value Unit Min Typ Max fO Resonant frequency 32.768 kHz RS Series resistance 40 k Ω CL Load capacitance 8 pF |
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