AU6254 Datasheet, PDF (24/30 Pages) List of Unclassifed Manufacturers – USB2.0 Hub Controller

Output Levels for Low-/Full-speed:
SYMBOL
PARAMETER
V_OL
V_OH
V_OSE1
V_CRS
Low
High (driven)
SE1
Output Signal Crossover Voltage
LIMITS
MIN
MAX
0.0
0.3
2.8
3.6
0.8
1.3
2.0
Output Levels for High –speed:
SYMBOL
PARAMETER
V_HSOI
V_HSOH
V_HSOL
V_CHIRPJ
V_CHIRPK
High-speed idle level
High-speed data signaling high
High-speed data signaling low
Chirp J level (differential voltage)
Chirp K level (differential voltage)
LIMITS
MIN
MAX
-10
10
360
440
-10
10
700
1100
-900
-500
Terminations:
SYMBOL
R_PU
R_PD
Z_INP
V_TERM
PARAMETER
Bus Pull-up Resistor on Upstream Facing Port
Bus Pull-down Resistor on Upstream Facing Port
Input impedance exclusive of pull-up/pull-down
(for low-/full-speed)
Termination voltage for upstream facing port
pull-up (R_PU)
LIMITS
MIN
MAX
1.425
1.575
14.25
15.75
300
3.0
3.6
UNIT
V
V
V
V
UNIT
mV
mV
mV
mV
mV
UNIT
kΩ
kΩ
kΩ
V
Terminations in High-speed:
SYMBOL
PARAMETER
V_HSTERM
Termination voltage in high-speed
LIMITS
MIN
MAX
-10
10
UNIT
mV
Table 5.6 High-speed Source Electrical Characteristics
Driver Characteristics:
SYMBOL
PARAMETER
T_HSR
T_HSF
Z_HSDRV
Rise Time (10%-90%)
Fall Time (10%-90%)
Driver Output Resistance (which also serves as
high-speed termination)
LIMITS
MIN
MAX
500
500
40.5
49.5
UNIT
ps
ps
Ω
AU6254 USB2.0 Hub Controller V1.00W
Official Release_ Public
Page 24 of 30