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Integrated USB 2.0 Compatible 3-Port Hub
Datasheet
Revision 2.3 (08-27-07) 40 SMSC USB2503/USB2503A
DATASHEET
ICLK Input Buffer
Low Input Level
High Input Level
Input Leakage
Hysteresis
V
ILCK
V
IHCK
I
IL
V
HYSC
2.0
-10
50
0.8
+10
100
V
V
uA
mV
TTL Levels
V
IN
= 0 to V
DD33
CR
O12 and I/O12 Type Buffer
Low Output Level
High Output Level
Output Leakage
V
OL
V
OH
I
OL
2.4
0.4
+10
V
V
uA
I
OL
= 12mA @ V
DD33
CR = 3.3V
I
OH
= -4mA @ V
DD33
CR = 3.3V
V
IN
= 0 to V
DD33
CR
(Note 1)
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
CR = 3.3V
V
IN
= 0 to V
DD33
CR
(Note 1)
IO-U
(Note 2)
I-R
(Note 3)
Supply Current Unconfig-
ured
High-Speed Host
Full-Speed Host
I
CCINIT
I
CCINIT
100
95
mA
mA
Supply Current
Configured
(High-Speed Host)
2 Ports @ FS/LS
2 Ports @ HS
1 Port HS, 1 Port FS/LS
3 Ports @ HS
I
HCC2
I
HCH2
I
HCH1C1
I
HCH3
190
235
215
265
mA
mA
mA
mA
Total from all supplies
Table 7.1 DC Electrical Characteristics (continued)
PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS