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USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
Revision 1.0 (04-20-09) 40 SMSC LAN9512
DATASHEET
4.4 DC Specifications
Note 4.5 This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down
and pull-up resistors add +/- 50uA per-pin (typical)
Table 4.2 I/O Buffer Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
IS Type Input Buffer
Low Input Level
High Input Level
Negative-Going Threshold
Positive-Going Threshold
SchmittTrigger Hysteresis
(V
IHT
- V
ILT
)
Input Leakage
(V
IN
= VSS or VDD33IO)
Input Capacitance
V
ILI
V
IHI
V
ILT
V
IHT
V
HYS
I
IH
C
IN
-0.3
1.01
1.39
345
-10
1.18
1.6
420
3.6
1.35
1.8
485
10
2.5
V
V
V
V
mV
uA
pF
Schmitt trigger
Schmitt trigger
Note 4.5
IS_5V Type Input Buffer
Low Input Level
High Input Level
Negative-Going Threshold
Positive-Going Threshold
SchmittTrigger Hysteresis
(V
IHT
- V
ILT
)
Input Leakage
(V
IN
= VSS or VDD33IO)
Input Leakage
(V
IN
= 5.5V)
Input Capacitance
V
ILI
V
IHI
V
ILT
V
IHT
V
HYS
I
IH
I
IH
C
IN
-0.3
1.01
1.39
345
-10
1.18
1.6
420
5.5
1.35
1.8
485
10
120
3.5
V
V
V
V
mV
uA
uA
pF
Schmitt trigger
Schmitt trigger
Note 4.5
Note 4.5, Note 4.6
O8 Type Buffers
Low Output Level
High Output Level
V
OL
V
OH
VDD33IO - 0.4
0.4 V
V
I
OL
= 8mA
I
OH
= -8mA
OD8 Type Buffer
Low Output Level V
OL
0.4 V I
OL
= 8mA
O12 Type Buffers
Low Output Level
High Output Level
V
OL
V
OH
VDD33IO - 0.4
0.4 V
V
I
OL
= 12mA
I
OH
= -12mA
OD12 Type Buffer
Low Output Level V
OL
0.4 V I
OL
= 12mA
ICLK Type Buffer (XI Input)
Low Input Level
High Input Level
V
ILI
V
IHI
-0.3
1.4
0.5
3.6
V
V
Note 4.7