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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN4467 датащи(PDF) 29 Page - STMicroelectronics |
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AN4467 датащи(HTML) 29 Page - STMicroelectronics |
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29 / 33 page  DocID026156 Rev 2 29/33 AN4467 Reference design 32 6.2 Component references Table 5. Mandatory components Reference Component name Value Quantity Comments U1A Microcontroller STM32L053R8(T6) 1 64-pin package C8, C9, C10, C13 Capacitor 100 nF 3 ... 5 Ceramic capacitors (decoupling capacitors) C11 Capacitor 4.7 µF 1 Tantalum / chemical / ceramic capacitor (decoupling capacitor) C6, C12 Capacitor 1 µF 2 Ceramic capacitor (LCD booster or decoupling capacitor) Table 6. Optional components Reference Component name Value Quantity Comments R1 Resistor 390 Ω 1 Used for HSE: the value depends on the crystal characteristics, refer to application note AN2687 C5 Capacitor 100 nF 1 Ceramic capacitor C1, C2 Capacitor 6.8 pF 2 Used for LSE: the value depends on the crystal characteristics. Fits for MC-306 32.768K-E3, which has a load capacitance of 6 pF. C3, C4 Capacitor 20 pF 2 Used for HSE: the value depends on the crystal characteristics, refer to application note AN2687 X1 Quartz 8 MHz 1 Used for HSE X2 Quartz 32.764 kHz 1 Used for LSE CN1 SWD connector HE10 1 - SW1 Switch - 2 Used to select the right boot mode B1 Push-button - 1 - L1 Ferrite bead - 1 For EMC reduction on VDDA supply, can be replaced by a direct connection between VDD and VDDA |
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