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STM32G031F6 Datasheet(PDF) 60 Page - STMicroelectronics |
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STM32G031F6 Datasheet(HTML) 60 Page - STMicroelectronics |
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60 / 117 page ![]() Electrical characteristics STM32G031x4/x6/x8 60/117 DS12992 Rev 2 Figure 17. 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 39. 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. Guaranteed by design. Table 38. 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 39. HSE oscillator characteristics(1) Symbol Parameter Conditions(2) Min Typ Max Unit fOSC_IN Oscillator frequency - 4 8 48 MHz RF Feedback resistor - - 200 - kΩ |
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