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USB3300 数据表(PDF) 42 Page - Microchip Technology |
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USB3300 数据表(HTML) 42 Page - Microchip Technology |
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42 / 53 page ![]() USB3300 DS00001783B-page 42 2014-2015 Microchip Technology Inc. FIGURE 7-3: USB3300 APPLICATION DIAGRAM (PERIPHERAL WITH OVER VOLTAGE PROTECTION) Link Controller USB3300 RBIAS DIR NXT STP CLKOUT DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA0 DATA1 VDD3.3 VDD3.3 VBUS DM DP ID RESET USB Receptacle DM DP DIR NXT STP CLKOUT DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA0 DATA1 7 8 32 GNDFLAG 2 3 VBUS 1 SHIELD GND 16 6 4 5 CBYP CVBUS 3.3V Supply VDDA1.8 29 CDC_BLOCK 12.0k 1% Steady state voltage at the VBUS pin must not be allowed to exceed VVBUS. NC 17 18 19 20 21 22 23 24 13 11 12 14 9 COUT XI 28 CPEN 3 NC XO 27 1M Ω CLOAD CLOAD REG_EN VDD3.3 30 31 VDD1.8 26 12 VDD1.8 15 COUT VDD3.3 25 EXTVBUS 10 NC The capacitor CVBUS must be installed on this side of RVBUS. Over-voltage device may be desired to protect against out-of-spec chargers. Optional Over-voltage Protection |
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