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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32C011F6P3TR Scheda tecnica(PDF) 53 Page - STMicroelectronics |
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STM32C011F6P3TR Scheda tecnica(HTML) 53 Page - STMicroelectronics |
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53 / 94 page  DS13866 Rev 3 53/94 STM32C011x4/x6 Electrical characteristics 79 Figure 13. Low-speed external clock source AC timing diagram High-speed external clock generated from a crystal/ceramic resonator The high-speed external (HSE) clock can be supplied with a 4 to 48 MHz crystal/ceramic resonator oscillator. All the information given in this paragraph are based on design simulation results obtained with typical external components specified in Table 38. In the application, the resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize output distortion and startup stabilization time. Refer to the crystal resonator manufacturer for more details on the resonator characteristics (frequency, package, accuracy). VLSEH OSC32_IN input pin high level voltage -0.7 VDDIO1 -VDDIO1 V VLSEL OSC32_IN input pin low level voltage - VSS -0.3 VDDIO1 tw(LSEH)/ tw(LSEL) OSC32_IN high or low time - 250 - - ns 1. Specified by design – Not tested in production. Table 37. Low-speed external user clock characteristics(1) (continued) Symbol Parameter Conditions Min Typ Max Unit MS19215V2 VLSEH tf(LSE) 90% 10% TLSE t tr(LSE) VLSEL tw(LSEH) tw(LSEL) Table 38. HSE oscillator characteristics(1) Symbol Parameter Conditions(2) Min Typ Max Unit fOSC_IN Oscillator frequency - 4 - 48 MHz RF Feedback resistor - - 200 - kΩ |
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