USB1T11A(2008) データシートの表示（PDF） - Fairchild Semiconductor

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USB1T11A
(Rev.:2008)

Universal Serial Bus Transceiver

Fairchild Semiconductor 

AC Loadings and Waveforms

VOL and VOH are the typical output voltage drops that occur with the output load. VCC never goes below 3.0V.

Figure 4. Rise and Fall Times

Figure 5. VPO, VMO/FSEO to D+/D-

Figure 6. D+/D- to RCV, VP/VM

Test Circuits and Waveforms

Figure 7. /OE to D+/D-

Figure 8. Load for VM/VP and RCV

Figure 9. Load for Enable and Disable Times

CL=50pF, Full Speed

CL=200pF, Full Speed (Minimum Timing)

CL=600pF, Full Speed (Maximum Timing)

1.5kΩ on D-(Low Speed) or D+ (Full Speed) only.

Test

D-/LS

D+/LS

D-/FS

D+/FS

S1

Close

Open

Open

Close

Figure 10. Load for D+/D-

© 1999 Fairchild Semiconductor Corporation

USB1T11A • Rev. 1.0.2

7

www.fairchildsemi.com

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