W81282F Datasheet, PDF (12/18 Pages) Winbond – USB Keyboard Controller with 4 Ports Hub

W81282F
PRELIMINARY
7. ELECTRICAL CHARACTERISTICS
Operating conditions: VCC = 5V +/-5%, Ta=0^o to 70^oC
PARAMETER
Symbol
Conditions
Min Max
VCC Supply Current
Logic Output High
Logic Output Low
Logic Input Leakage Current
USB CHARACTERISTICS
Icc
VOH
VOL
Io>24ma
Io>6ma
Ta=70^oC
Note 8
TBD
2.5 VCC
0.4
10
Leakage Current:
Hi-Z State Output Leakage
ILO V< V IN <3.3 V
-10 +10
Input Levels:
Differential Input Sensitivity
VDI
|(D+)-(D-)|
0.2
Single Ended Signal “0”
VSE0
0.8 2.0
Differential Common Mode Range
Output Levels:
V_CM
Includes VDI range 0.8 2.5
Driver Output Low
VOLU RL of 1.5 kΩ to 3.6 V
0.3
Driver Output High
VOHU RL of 15 kΩ to GND 2.8 3.6
Output Signal Crossover Voltage
V_CRS
1.3 2.0
Capacitance:
Transceiver Capacitance
CIN
Pin to GND
20
Full Speed Timings:
Output Rise/Fall Times
t R /t F Note 1, 4 (C_L= 50 pF) 4
20
Source Differential Driver Jitter to Next Transition t DJ1 Note 2, 3
-3.5 3.5
/ to Paired Transition
/tDJ2
/-4 /4
Differential to EOP transition Skew
Hub Differential Data Delay(without cable)
t _DEOP Note 3
t HDD2 Note 2,3,5
-2 5
44
Hub Differential Driver Jitter to Next Transition
t HDJ1 Note 2,3,5
-3
3
/ to Paired Transition (including cable)
Data bit width distortion after SOP
/
t
HtDSJO2 _{P Note 3,5}
/ -1 /1
-5 5
Hub SE0 Delay Relative to t _HDD
t EOPD Note 3,5
0
15
Hub EOP Output Width Skew
t HESK Note 3,5
-15 15
Low Speed Timings:
Output Rise/Fall Times
t R /t F Note 1, 4 (C_L= 50 pF) 75 300
Unit
mA
V
V
uA
uA
V
V
V
V
V
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Publication Release Date: Aug. 1999
-9-
Revision 0.5