USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
4.4
DC Specifications
Table 4.2 I/O Buffer Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
IS Type Input Buffer
Low Input Level
VILI
VIHI
-0.3
V
V
High Input Level
3.6
1.35
1.8
Negative-Going Threshold
Positive-Going Threshold
SchmittTrigger Hysteresis
VILT
VIHT
VHYS
1.01
1.39
345
1.18
1.6
V
Schmitt trigger
Schmitt trigger
V
420
485
mV
(VIHT - VILT
)
Input Leakage
IIH
-10
10
uA
pF
Note 4.6
(VIN = VSS or VDD33IO)
Input Capacitance
CIN
2.5
IS_5V Type Input Buffer
Low Input Level
VILI
VIHI
-0.3
V
V
High Input Level
5.5
1.35
1.8
Negative-Going Threshold
Positive-Going Threshold
SchmittTrigger Hysteresis
VILT
VIHT
VHYS
1.01
1.39
345
1.18
1.6
V
Schmitt trigger
Schmitt trigger
V
420
485
mV
(VIHT - VILT
)
Input Leakage
IIH
IIH
-10
10
120
3.5
uA
uA
pF
Note 4.6
(VIN = VSS or VDD33IO)
Input Leakage
(VIN = 5.5V)
Note 4.6, Note 4.7
Input Capacitance
O8 Type Buffers
CIN
Low Output Level
VOL
VOH
0.4
V
V
IOL = 8mA
IOH = -8mA
VDD33IO - 0.4
High Output Level
OD8 Type Buffer
Low Output Level
O12 Type Buffers
VOL
0.4
0.4
V
IOL = 8mA
Low Output Level
VOL
VOH
V
V
IOL = 12mA
IOH = -12mA
VDD33IO - 0.4
High Output Level
OD12 Type Buffer
Low Output Level
VOL
0.4
V
IOL = 12mA
Note 4.8
ICLK Type Buffer (XI Input)
Low Input Level
High Input Level
VILI
VIHI
-0.3
1.4
0.5
3.6
V
V
Note 4.6 This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down
and pull-up resistors add +/- 50uA per-pin (typical)
SMSC LAN9514/LAN9514i
Revision 1.0 (11-24-09)
DATA4S1HEET
SMSC [ SMSC CORPORATION ]
