USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
61
Revision 1.0 (3-11-09)
DATASHEET
Figure 9.1 Supply Rise Time Model
Table 9.1 DC Electrical Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
COMMENTS
I, IS Type Input Buffer
Low Input Level
High Input Level
Input Leakage
Hysteresis (‘IS’ Only)
V
ILI
V
IHI
I
IL
V
HYSI
2.0
-10
250
0.8
+10
350
V
V
μ
A
mV
TTL Levels
V
IN
= 0 to
VDD33
Input Buffer with Pull-Up (IPU)
Low Input Level
High Input Level
Low Input Leakage
High Input Leakage
V
ILI
V
IHI
I
ILL
I
IHL
2.0
+35
-10
0.8
+90
+10
V
V
μ
A
μ
A
TTL Levels
V
IN
= 0
V
IN
=
VDD33
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
+10
-35
0.8
-10
-90
V
V
μ
A
μ
A
TTL Levels
V
IN
= 0
V
IN
=
VDD33
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
μ
A
V
IN
= 0 to
VDD33
t
10%
10%
90%
Voltage
t
RT
t
90%
Time
100%
3.3 V
VSS
VDD33
