Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology
Datasheet
Table 5.3 Variable I/O Buffer Characteristics
1.8V 2.5V 3.3V
TYP TYP TYP
PARAMETER
VIS Type Input Buffer
Low Input Level
SYMBOL
MIN
MAX
UNITS
NOTES
VILI
VIHI
-0.3
V
V
High Input Level
3.6
1.76
1.90
288
Neg-Going Threshold
Pos-Going Threshold
VILT
VIHT
VHYS
0.64
0.81
102
0.83 1.15 1.41
0.99 1.29 1.65
V
Schmitt trigger
Schmitt trigger
V
Schmitt Trigger
Hysteresis (VIHT - VILT
158
136
138
mV
)
Input Leakage
IIH
-10
10
2
uA
pF
Note 5.9
(VIN = VSS or VDDIO)
Input Capacitance
VO8 Type Buffers
CIN
Low Output Level
VOL
VOH
0.4
V
V
IOL = 8mA
IOH = -8mA
VDDIO - 0.4
High Output Level
VOD8 Type Buffer
Low Output Level
VOL
0.4
V
IOL = 8mA
Note 5.9 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 5.4 100BASE-TX Transceiver Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Peak Differential Output Voltage High
Peak Differential Output Voltage Low
Signal Amplitude Symmetry
Signal Rise and Fall Time
Rise and Fall Symmetry
Duty Cycle Distortion
VPPH
VPPL
VSS
950
-950
98
3.0
-
-
-
1050
-1050
102
5.0
mVpk
mVpk
%
Note 5.10
Note 5.10
Note 5.10
Note 5.10
Note 5.10
Note 5.11
-
TRF
-
nS
TRFS
DCD
VOS
-
0.5
nS
35
-
50
-
65
%
Overshoot and Undershoot
Jitter
5
%
1.4
nS
Note 5.12
Note 5.10 Measured at line side of transformer, line replaced by 100Ω (+/- 1%) resistor.
Note 5.11 Offset from 16nS pulse width at 50% of pulse peak.
Note 5.12 Measured differentially.
SMSC LAN8710A/LAN8710Ai
69
Revision 1.4 (08-23-12)
DATASHEET
SMSC [ SMSC CORPORATION ]
