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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN2476 датащи(PDF) 35 Page - STMicroelectronics |
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AN2476 датащи(HTML) 35 Page - STMicroelectronics |
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35 / 49 page  AN2476 Operating measurements 35/49 This table describes how the STR750 chip can be powered: Table 7. Power supply This table describes how the STR750 chip can be decoupled Table 8. Decoupling capacitor This table describes how to connect the Pull-up and Pull-down resistors: Table 9. Pull-up and pull-down resistor Quartz 32 KHz 1 Connector HE-20 1 Signal Name pin n° to VDD1 pin n° to GND TEST 9 VSS_IO 10 VDD_IO 44 VDDA_PLL 45 VSS_IO 48 VSSA_PLL 49 VSS18 53 VSSBKP 54 VDD_IO 69 VDDA_ADC 70 VSSA_ADC 73 VSS_IO 74 VREG_DIS 75 VSS18 97 VSS_IO 98 VDD_IO 99 SIgnal Name Pin Connection V18REG 52 Decoupling with 10µF capacitor and VSS18 pin 53. V18_BKP 55 Decoupling with 1µF capacitor and VSSBKP pin 54. V18 96 Decoupling with 33nF capacitor and VSS18 pin 97. VDD_IO 99 Decoupling with 1µF capacitor and VSS_IO pin 98. Signal Name Pin Connection Boot 0 4 Pull-down to GND via 10K resistor Boot 1 27 Pull-down to GND via 10K resistor Components Value/Reference Quantity |
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