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STLUX385ATR 数据表(PDF) 82 Page - STMicroelectronics |
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STLUX385ATR 数据表(HTML) 82 Page - STMicroelectronics |
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82 / 99 page  Electrical characteristics STLUX385A 82/98 DocID024387 Rev 2 10.3.4 Internal clock sources and timing characteristics HSI RC oscillator Subject to general operating conditions for V DD and T A . LSI RC oscillator Subject to general operating conditions for V DD and T A . PLL internal source clock Table 43. HSI RC oscillator Symbol Parameter Conditions Min.(1) 1. Data based on characterization results, not tested in production. Typ. Max.(1) Unit f HSI Frequency 16 MHz ACC HSI Accuracy of HSI oscillator (factory calibrated) (1)(2) 2. Variation referred to f HSI nominal value. V DD = 3.3V T A = 25 ºC -1% +1% % V DD = 3.3V -40 ºC ≤ T A ≤ 105 ºC -4% +4% V DD = 5V -40 ºC ≤ T A ≤ 105 ºC -4% +4% t SU(HSI) HSI oscillator wakeup time including calibration 1 μs Table 44. LSI RC oscillator Symbol Parameter Conditions Min.(1) 1. Guaranteed by design, not tested in production. Typ. Max.(1) Unit f LSI Frequency 153.6 kHz ACC LSI Accuracy of LSI oscillator 3.3V ≤ V DD ≤ 5V -40 ºC ≤ T A ≤ 105 ºC -10% 10% % t SU(LSI) LSI oscillator wakeup time 7 μs Table 45. PLL internal source clock Symbol Parameter Conditions Min.(1) Typ. Max.(1) Unit f IN Input frequency ((2) 3.3V ≤ V DD ≤ 5V -40 ºC ≤ T A ≤ 105 ºC 16 MHz f OUT Output frequency 96 t lock PLL lock time 200 μs |
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