USB MultiSwitchTM Hub
Datasheet
Table 11.1 DC Electrical Characteristics (continued)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
COMMENTS
Input Buffer with Pull-
Down (IPD )
Low Input Level
VILI
VIHI
IILL
0.8
V
V
TTL Levels
High Input Level
Low Input Leakage
High Input Leakage
2.0
30
10
uA
uA
VIN = 0
IIHL
VIN = VDD33
ICLK Input Buffer
Low Input Level
High Input Level
Input Leakage
VILCK
VIHCK
IIL
0.5
V
V
TTL Levels
1.4
-10
+10
uA
VIN = 0 to VDD33
I/OSD12 Type Buffer
Low Output Level
Output Leakage
Hysteresis
VOL
IOL
0.4
+10
350
V
IOL = 12 mA @ VDD33 = 3.3V
-10
µA
mV
VIN = 0 to VDD33
(Note 11.1)
VHYSI
250
300
IO-U
(Note 11.2)
I-R
(Note 11.3)
Supply Current
Unconfigured
Note:
1 Upstream port is in
suspend, and the
other Upstream Port is
in the process of being
enumerated by an
external Host
1High-Speed Hosts
1Full-Speed Hosts
ICCINIT
ICCINIT
119
117
mA
mA
controller (all
downstream ports
assigned to the
Upstream port under
enumeration).
Supply Current
Unconfigured
Note:
Both Upstream Ports
are in the process of
being enumerated by
external Host
2 High-Speed Hosts
2 Full-Speed Hosts
ICCINIT
ICCINIT
199
174
mA
mA
controllers.
Supply Current
Configured
(2 upstream High-Speed
Hosts)
Total from all supplies
2 Ports @ FS/LS
2 Ports @ HS
IHCC2
IHCH2
IHCH1C1
198
260
240
310
340
mA
mA
mA
mA
mA
1 Port HS, 1 Port FS/LS
3 Ports HS
IHCH3
4 Ports HS
IHCH4
Revision 1.91 (08-22-07)
SMSC USB2524
DATA5S4HEET
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