PARAMETER
IOUSB Output Levels:
Static Output Low
(Note 3)
SYMBOL
VOL
MIN
0.0
TYP
MAX
0.3
UNITS
COMMENTS
RL of 15 KΩ to
V
V
GND
Static Output High
(Note 3)
VOH
2.8
3.6
RL of 1.5 KΩ to
3.6V
Output Signal Crossover
Voltage
VCRS
ICCI
1.3
2.0
V
(Note 3)
VCC Supply Current Active
20
mA
All outputs open,
all inputs at a fixed
state (i.e., 0V or
3.3V.
Trickle Supply Voltage
VTR
VCC
min
-.5V
VCC
V
VCC must not be
greater than .5V
above VTR
max
VTR Supply Current Active
ITRI
4
20
mA
All outputs ,
all inputs at a fixed
state (i.e., 0V or
3.3V.
Reference Voltage
VREF
5.5
V
VREF can be either
3.3V (nominal) or
5V (nominal)
VREF Supply Current Active
IRFI
8
mA
All outputs open,
all inputs at a fixed
state (i.e., 0V or
3.3V.
Note 1: All output leakage’s are measured with the current pins in high impedance
Note 2: Output leakage is measured with the low driving output off, either for a high level output or a high impedance
state.
Note 3: Voltages are measured from the local ground potential, unless otherwise specified.
Note 4: This minimum value is referred to as VIL in the USB Spec 1.1
Note 5: This maximum value is referred to as VIH in the USB Spec 1.1
Note 6: This input sensitivity is valid when both differential data inputs are in the differential common
mode range.
SMSC DS – LPC47M14X
Page 175
Rev. 03/19/2001
SMSC [ SMSC CORPORATION ]
