lan8710a Standard Microsystems Corp., lan8710a Datasheet - Page 66

• Manufacturer Part Number: lan8710a
• Description: Small Footprint Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix And Flexpwr Technology
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (08-10-10)
5.4
IS Type Input Buffer
Low Input Level
High Input Level
Negative-Going Threshold
Positive-Going Threshold
Schmitt Trigger Hysteresis
(V
Input Leakage
(V
Input Capacitance
O12 Type Buffers
Low Output Level
High Output Level
ICLK Type Buffer
(XTAL1 Input)
Low Input Level
High Input Level
IHT
IN
= VSS or VDDIO)
- V
PARAMETER
ILT
)
Note: Current measurements do not include power applied to the magnetics or the optional external
Note 5.6
Table 5.2
voltage operation.
provided for 1.8V, 2.5V, and 3.3V VDDIO cases.
Note 5.7
Note 5.8
DC Specifications
LEDs. The Ethernet component current is typically 41mA in 100BASE-TX mode and 100mA in
10BASE-T mode, independent of the 2.5V or 3.3V supply rail of the transformer.
details the non-variable I/O buffer characteristics. These buffer types do not support variable
Calculated with full flexPWR features activated: VDDIO=1.8V & internal regulator disabled.
This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down
and pull-up resistors add +/- 50uA per-pin (typical).
XTAL1/CLKIN can optionally be driven from a 25MHz single-ended clock oscillator.
SYMBOL
Table 5.2 Non-Variable I/O Buffer Characteristics
Table 5.3
V
V
V
V
V
V
V
V
C
V
I
HYS
IHT
IH
OH
IHI
ILT
OL
IHI
ILI
ILI
IN
details the variable voltage I/O buffer characteristics. Typical values are
VDD2A - 0.4
1.01
1.39
MIN
-0.3
336
-0.3
-10
1.4
DATASHEET
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR
66
TYP
1.19
1.59
399
VDD2A + 0.4
MAX
1.39
1.79
0.35
459
3.6
0.4
10
2
UNITS
mV
uA
pF
V
V
V
V
V
V
V
V
SMSC LAN8710A/LAN8710Ai
Schmitt trigger
Schmitt trigger
I
I
OH
OL
Note 5.7
Note 5.8
NOTES
= -12mA
= 12mA
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Technology