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STM32F446MC 数据表(PDF) 108 Page - STMicroelectronics |
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STM32F446MC 数据表(HTML) 108 Page - STMicroelectronics |
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108 / 202 page  Electrical characteristics STM32F446xC/E 108/202 DocID027107 Rev 6 Low-speed internal (LSI) RC oscillator Figure 28. ACCLSI versus temperature 6.3.11 PLL characteristics The parameters given in Table 43 and Table 44 are derived from tests performed under temperature and VDD supply voltage conditions summarized in Table 16. Table 42. LSI oscillator characteristics (1) 1. VDD = 3 V, TA = –40 to 105 °C unless otherwise specified. Symbol Parameter Min Typ Max Unit fLSI(2) 2. Guaranteed based on test during characterization.. Frequency 17 32 47 kHz tsu(LSI)(3) 3. Guaranteed by design. LSI oscillator startup time - 15 40 µs IDD(LSI)(3) LSI oscillator power consumption - 0.4 0.6 µA Table 43. Main PLL characteristics Symbol Parameter Conditions Min Typ Max Unit fPLL_IN PLL input clock(1) -0.95(2) 12.10 MHz fPLL_OUT PLL multiplier output clock - 12.5 - 180 MHz fPLL48_OUT 48 MHz PLL multiplier output clock - - 48 75 MHz fVCO_OUT PLL VCO output - 100 - 432 MHz |
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