Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.1 (04-26-10) 62 SMSC USB251x
DATASHEET
Figure 9.1 Supply Rise Time Model
Voltage on any I/O
pin
-0.3 5.5 V If any 3.3 V supply voltage drops
below 3.0 V, then the MAX becomes:
(3.3 V supply voltage) + 0.5
Voltage on XTALIN -0.3 VDD33 V
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
μA
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
μA
μA
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
μA
μA
TTL Levels
V
IN
= 0
V
IN
= VDD33
PARAMETER SYMBOL MIN MAX UNITS COMMENTS
t
10%
10%
90%
Voltage
t
RT
t
90%
Time
100%
3.3 V
VSS
VDD33