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USB Flash Drive
Rev. A.2 3/5 Sep 2006
6. DC Characteristics
Symbol Parameter Min. Max. Unit Notes
VIH_TTL TTL Input High Voltage 2 Vcc3+0.3 V
VIL_TTL TTL Input Low Voltage -0.3 0.8 V
VOH_TTL TTL Output High Voltage 0.9 X Vcc3 V
VOL_TTL TTL Output Low Voltage 0.45 V
IOH_TTL TTL Output High Current -4 mA
IOL_TTL TTL Output Low Current 4 mA
VIH_USB
USB Input High Voltage for
Low-/full-speed
2.0 V
VIL_USB
USB Input Low Voltage for
Low-/full-speed
0.8 V
VI_USB_DIFF
Differential Input Sensitivity for
Low-/full-speed
TBD V
VI_USB_CM
Differential Common Mode Input
Range for Low-/full-speed
0.8 2.5 V
VI_USB_HSSQ
USB High-speed squelch Input
detection threshold
0.10 0.15 V
VI_USB_HSDSC
USB High-speed disconnect
Input detection threshold
0.525 0.625 V
VI_USB_HSCM
USB High-speed Signaling
Common Mode Range
-0.05 0.5 V
VOH_USB
USB Output High Voltage for
Low-/full-speed
2.8 3.6 V
VOL_USB
USB Output Low Voltage for
Low-/full-speed
0 0.3 V
VOH_USB_HS
USB Output High Voltage for
High-speed
0.36 0.44 V
VOL_USB_HS
USB Output Low Voltage for
High-speed
-0.01 0.01 V
IOH_USB
USB Output High Current for
Low-/full-speed
-10 mA
IOL_USB
USB Output Low Current for
Low-/full-speed
10 mA
IOH_USB_HS
USB Output High Current for
High-speed
-40 mA
IOL_USB_HS
USB Output Low Current for
High-speed
40 mA