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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F334X4 датащи(PDF) 69 Page - STMicroelectronics |
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STM32F334X4 датащи(HTML) 69 Page - STMicroelectronics |
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69 / 115 page  DocID025409 Rev 5 69/115 STM32F334x4 STM32F334x6 STM32F334x8 Electrical characteristics 100 Figure 17. HSI oscillator accuracy characterization results for soldered parts Low-speed internal (LSI) RC oscillator 6.3.9 PLL characteristics The parameters given in Table 42 are derived from tests performed under ambient temperature and supply voltage conditions summarized in Table 19. Table 41. LSI oscillator characteristics(1) 1. VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified. Symbol Parameter Min. Typ. Max. Unit fLSI Frequency 30 40 50 kHz tsu(LSI)(2) 2. Guaranteed by design, not tested in production. LSI oscillator startup time - - 85 µs IDD(LSI)(2) LSI oscillator power consumption - 0.75 1.2 µA Table 42. PLL characteristics Symbol Parameter Value Unit Min. Typ. Max. fPLL_IN PLL input clock(1) 1. Take care of using the appropriate multiplier factors so as to have PLL input clock values compatible with the range defined by fPLL_OUT. 1(2) -24(2) MHz PLL input clock duty cycle 40(2) -60(2) % fPLL_OUT PLL multiplier output clock 16(2) -72 MHz tLOCK PLL lock time - - 200(2) µs Jitter Cycle-to-cycle jitter - - 300(2) 2. Guaranteed by design, not tested in production. ps |
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