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USB MultiSwitch
TM
Hub
Datasheet
Revision 1.91 (08-22-07) 54 SMSC USB2524
DATASHEET
Input Buffer with Pull-
Down (IPD )
Low Input Level
High Input Level
Low Input Leakage
High Input Leakage
V
ILI
V
IHI
I
ILL
I
IHL
2.0
0.8
30
10
V
V
uA
uA
TTL Levels
V
IN
= 0
V
IN
= V
DD33
ICLK Input Buffer
Low Input Level
High Input Level
Input Leakage
V
ILCK
V
IHCK
I
IL
1.4
-10
0.5
+10
V
V
uA
TTL Levels
V
IN
= 0 to V
DD33
I/OSD12 Type Buffer
Low Output Level
Output Leakage
Hysteresis
V
OL
I
OL
V
HYSI
-10
250 300
0.4
+10
350
V
µA
mV
I
OL
= 12 mA @ V
DD33
= 3.3V
V
IN
= 0 to V
DD33
(Note 11.1)
IO-U
(Note 11.2)
I-R
(Note 11.3)
Supply Current
Unconfigured
1High-Speed Hosts
1Full-Speed Hosts
I
CCINIT
I
CCINIT
119
117
mA
mA
Note: 1 Upstream port is in
suspend, and the
other Upstream Port is
in the process of being
enumerated by an
external Host
controller (all
downstream ports
assigned to the
Upstream port under
enumeration).
Supply Current
Unconfigured
2 High-Speed Hosts
2 Full-Speed Hosts
I
CCINIT
I
CCINIT
199
174
mA
mA
Note: Both Upstream Ports
are in the process of
being enumerated by
external Host
controllers.
Supply Current
Configured
(2 upstream High-Speed
Hosts)
2 Ports @ FS/LS
2 Ports @ HS
1 Port HS, 1 Port FS/LS
3 Ports HS
4 Ports HS
I
HCC2
I
HCH2
I
HCH1C1
I
HCH3
I
HCH4
198
260
240
310
340
mA
mA
mA
mA
mA
Total from all supplies
Table 11.1 DC Electrical Characteristics (continued)
PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS