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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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STM32L021D4 Datenblatt(PDF) 69 Page - STMicroelectronics |
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STM32L021D4 Datenblatt(HTML) 69 Page - STMicroelectronics |
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69 / 114 page  DocID027982 Rev 5 69/114 STM32L021x4 Electrical characteristics 93 6.3.8 PLL characteristics The parameters given in Table 40 are derived from tests performed under ambient temperature and VDD supply voltage conditions summarized in Table 17. tSU(MSI) MSI oscillator startup time MSI range 0 30 - µs MSI range 1 20 - MSI range 2 15 - MSI range 3 10 - MSI range 4 6 - MSI range 5 5 - MSI range 6, Voltage range 1 and 2 3.5 - MSI range 6, Voltage range 3 5- tSTAB(MSI)(2) MSI oscillator stabilization time MSI range 0 - 40 µs MSI range 1 - 20 MSI range 2 - 10 MSI range 3 - 4 MSI range 4 - 2.5 MSI range 5 - 2 MSI range 6, Voltage range 1 and 2 -2 MSI range 3, Voltage range 3 -3 fOVER(MSI) MSI oscillator frequency overshoot Any range to range 5 -4 MHz Any range to range 6 -6 1. This is a deviation for an individual part, once the initial frequency has been measured. 2. Guaranteed by characterization results, not tested in production. Table 39. MSI oscillator characteristics (continued) Symbol Parameter Condition Typ Max Unit Table 40. PLL characteristics Symbol Parameter Value Unit Min Typ Max(1) fPLL_IN PLL input clock(2) 2- 24 MHz PLL input clock duty cycle 45 - 55 % |
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