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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F372CC датащи(PDF) 75 Page - STMicroelectronics |
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STM32F372CC датащи(HTML) 75 Page - STMicroelectronics |
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75 / 128 page  STM32F37x Electrical characteristics Doc ID 022691 Rev 3 75/128 Figure 15. Typical application with a 32.768 kHz crystal Note: An external resistor is not required between OSC32_IN and OSC32_OUT and it is forbidden to add one. 6.3.8 Internal clock source characteristics The parameters given in Table 42 are derived from tests performed under ambient temperature and supply voltage conditions summarized in Table 22. The provided curves are chararacterization results, not tested in production. High-speed internal (HSI) RC oscillator Table 42. HSI oscillator characteristics(1) 1. VDDA =3.3 V, TA = –40 to 105 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit fHSI Frequency 8 MHz TRIM HSI user trimming step 1(2) 2. Guaranteed by design, not tested in production. % DuCy(HSI) Duty cycle 45(2) 55(2) % ACCHSI Accuracy of the HSI oscillator (factory calibrated) TA = –40 to 105 °C –3.8(3) 3. Data based on characterization results, not tested in production. 4.6(3) % TA = –10 to 85 °C –2.9(3) 2.9(3) % TA = 0 to 70 °C % TA = 25 °C –1 1 % tsu(HSI) HSI oscillator startup time 1(3) 2(3) µs IDD(HSI) HSI oscillator power consumption 80 100(3) µA |
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