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STM32F058C8 bảng dữ liệu(PDF) 56 Page - STMicroelectronics |
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STM32F058C8 bảng dữ liệu(HTML) 56 Page - STMicroelectronics |
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56 / 104 page ![]() Electrical characteristics STM32F058C8 STM32F058R8 STM32F058T8 56/104 DocID023402 Rev 3 Figure 14. Typical application with an 8 MHz crystal 1. REXT value depends on the crystal characteristics. Low-speed external clock generated from a crystal resonator The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal resonator oscillator. All the information given in this paragraph are based on design simulation results obtained with typical external components specified in Table 33. 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). Table 33. LSE oscillator characteristics (fLSE = 32.768 kHz) Symbol Parameter Conditions(1) Min(2) Typ Max(2) Unit IDD LSE current consumption LSEDRV[1:0]=00 lower driving capability -0.5 0.9 µA LSEDRV[1:0]= 01 medium low driving capability -- 1 LSEDRV[1:0] = 10 medium high driving capability -- 1.3 LSEDRV[1:0]=11 higher driving capability -- 1.6 |
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