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FSUSB73 Fiches technique(PDF) 4 Page - ON Semiconductor |
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FSUSB73 Fiches technique(HTML) 4 Page - ON Semiconductor |
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4 / 12 page ![]() © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSUSB73 • Rev. 1.0.2 3 Truth Tables Table 1. 3:1 USB Switch Control /OE SEL1 SEL0 Function 1 X X All Switch Paths Open 0 0 1 D+ = HSD0+, D- = HSD0- 0 1 0 D+ = HSD1+, D- = HSD1- 0 1 1 D+ = HSD2+, D- = HSD2- 0 0 0 All Switch Paths Open Table 2. Isolation Switch Control SELS Function 0 HSD2S+ = Open, HSD2S- = Open 1 HSD2S+ = HSD2+, HSD2S- = HS2S- Functionality Figure 4. Typical USB Application 1 Figure 5. Typical USB Application 2 Figure 6. Typical USB Application 3 Figure 7. Loopback USB Application Proc 1 Proc 2 Proc 3 HOST SEL0=1 SEL1=0 SELS=0 HSD0 HSD1 HSD2S HSD2 Proc. 1 Proc. 2 Proc. 3 HOST SEL0=0 SEL1=1 SELS=0 HSD0 HSD1 HSD2S HSD2 Proc. 1 Proc. 2 Proc 3 HOST SEL0=1 SEL1=1 SELS=0 HSD0 HSD1 HSD2S HSD2 Proc. 1 Proc. 2 Proc. 3 HOST SEL0=0 SEL1=1 SELS=1 HSD0 HSD1 HSD2S HSD2 HUB |
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