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STLUX285ATR Datasheet(PDF) 99 Page - STMicroelectronics |
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STLUX285ATR Datasheet(HTML) 99 Page - STMicroelectronics |
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99 / 126 page ![]() DocID027870 Rev 1 99/126 STLUX Electrical characteristics 126 12.3.4 Internal clock sources and timing characteristics HSI RC oscillator Subject to general operating conditions for VDD and TA. LSI RC oscillator Subject to general operating conditions for VDD and TA. PLL internal source clock Table 79. HSI RC oscillator Symbol Parameter Conditions Min.(1) 1. Data based on characterization results, not tested in production. Typ. Max.(1) Unit fHSI Frequency 16 MHz ACCHSI Accuracy of HSI oscillator (factory calibrated)(1), (2) 2. Variation referred to fHSI nominal value. VDD = 3.3 V TA= 25 ºC -1% +1% % VDD = 3.3 V -40 ºC TA 105 ºC -4% +4% VDD = 5 V -40 ºC TA 105 ºC -4% +4% tSU(HSI) HSI oscillator wake-up time including calibration 1µs Table 80. LSI RC oscillator Symbol Parameter Conditions Min.(1) 1. Guaranteed by design, not tested in production. Typ. Max.(1) Unit fLSI Frequency 153.6 kHz ACCLSI Accuracy of LSI oscillator 3.3 V VDD 5 V -40 ºC TA 105 ºC -10% 10% % tSU(LSI) LSI oscillator wake-up time 7 µs Table 81. PLL internal source clock Symbol Parameter Conditions Min.(1) 1. Data based on characterization results, not tested in production. Typ. Max.(1) Unit fIN Input frequency(2) 2. PLL maximum input frequency 16 MHz. 3.3 V VDD 5 V -40 ºC TA 105 ºC 16 MHz fOUT Output frequency 96 tlock PLL lock time 200 µs |
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