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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STR91XF датащи(PDF) 52 Page - STMicroelectronics |
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STR91XF датащи(HTML) 52 Page - STMicroelectronics |
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52 / 72 page  Electrical characteristics STR91xF 52/72 6.7 Main oscillator electrical characteristics VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified. Table 10. Main oscillator electrical characteristics 6.8 RTC oscillator electrical characteristics VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified. Table 11. RTC oscillator electrical characteristics Notes: 1 Min oscillator start voltage is the same as low voltage detect level (2.4V or 2.7V) for VDDQ Table 12. RTC crystal electrical characteristics Symbol Parameter Test Conditions Value Unit Min Typ Max tSTUP(OSC) Oscillator Start-up Time Stable VDDQ 3mS Symbol Parameter Test Conditions Value Unit Min Typ Max gM(RTC) Oscillator Start _voltage LVD 1) V tSTUP(RTC) Oscillator Start-up Time Stable VDDQ 1S Symbol Parameter Test Conditions 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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