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USBUF01P6 데이터시트(PDF) 3 Page - STMicroelectronics |
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USBUF01P6 데이터시트(HTML) 3 Page - STMicroelectronics |
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3 / 7 page ![]() USBUF01P6 3/7 ® TECHNICAL INFORMATION APPLICATION EXAMPLE Fig. A2: Implementation of ST' solutions for USB ports. Fig. A1: USB Standard requirements. Host or Hub port Twisted pair shielded Zo = 90ohms 5m max Hub 0 or Full-speed function Untwisted unshielded 3m max FULL SPEED CONNECTION LOW SPEED CONNECTION 3.3V 3.3V D+ D- D+ D- D+ D- D+ D- 1.5k 1.5k Hub 0 or Low-speed function Low-speed USB Transceiver Full-speed or Low-speed USB Transceiver 15k Rt Rt Ct Ct Host or Hub port Full-speed or Low-speed USB Transceiver 15k Rt Rt Ct Ct Rt Rt Ct Ct Full-speed USB Transceiver Rt Rt Ct Ct 15k 15k D+ D- CABLE D- D+ D+ D- Upstream port Downstream port USBDF01W5 D+ D- Rt D+ in Gnd D- in D+ out D- out Rt Rd Rd Ct Ct Gnd 3.3 V Rp Ct Rt Ct Rt D1 Gnd D2 D4 D3 3.3V USBUF01W6 D+ D- CABLE D- D+ D+ D- Upstream port Downstream port USBDF01W5 D+ D- Rt D+ in Gnd D- in D+ out D- out Rt Rd Rd Ct Ct Gnd 3.3 V Rp Ct Rt Ct Rt D1 Gnd D2 D4 D3 3.3V USBUF01W6 FULL SPEED CONNECTION LOW SPEED CONNECTION |
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