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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F030R8 датащи(PDF) 56 Page - STMicroelectronics |
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STM32F030R8 датащи(HTML) 56 Page - STMicroelectronics |
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56 / 93 page  Electrical characteristics STM32F030x4/x6/x8/xC 56/93 DS9773 Rev 4 6.3.8 Internal clock source characteristics The parameters given in Table 35 are derived from tests performed under ambient temperature and supply voltage conditions summarized in Table 21: General operating conditions. The provided curves are characterization results, not tested in production. High-speed internal (HSI) RC oscillator High-speed internal 14 MHz (HSI14) RC oscillator (dedicated to ADC) Low-speed internal (LSI) RC oscillator Table 35. HSI oscillator characteristics(1) 1. VDDA = 3.3 V, TA = -40 to 85°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. % DuCyHSI Duty cycle - 45(2) -55(2) % ACCHSI Accuracy of the HSI oscillator (factory calibrated) TA = -40 to 85°C - ±5 - % TA = 25°C - ±1(3) 3. With user calibration. -% tSU(HSI) HSI oscillator startup time - 1(2) -2(2) µs IDDA(HSI) HSI oscillator power consumption -- 80 - µA Table 36. HSI14 oscillator characteristics(1) 1. VDDA = 3.3 V, TA = -40 to 85 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit fHSI14 Frequency - - 14 - MHz TRIM HSI14 user-trimming step - - - 1(2) 2. Guaranteed by design, not tested in production. % DuCy(HSI14) Duty cycle - 45(2) -55(2) % ACCHSI14 Accuracy of the HSI14 oscillator (factory calibrated) TA = –40 to 85 °C - ±5 - % tsu(HSI14) HSI14 oscillator startup time - 1(2) -2(2) µs IDDA(HSI14) HSI14 oscillator power consumption - - 100 - µA Table 37. LSI oscillator characteristics(1) Symbol Parameter Min Typ Max Unit fLSI Frequency 30 40 50 kHz |
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