LAN8710AI datasheet(68/82 Pages) MICROCHIP

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Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology

Datasheet

Revision 1.4 (08-23-12)

SMSC LAN8710A/LAN8710Ai

DATASHEET

Note: Current measurements do not include power applied to the magnetics or the optional external

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.

Note 5.6

Calculated with full flexPWR features activated: VDDIO=1.8V & internal regulator disabled.

5.4

DC Specifications

Table 5.2 details the non-variable I/O buffer characteristics. These buffer types do not support variable

voltage operation. Table 5.3 details the variable voltage I/O buffer characteristics. Typical values are

provided for 1.8V, 2.5V, and 3.3V VDDIO cases.

Note 5.7

This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down

and pull-up resistors add +/- 50uA per-pin (typical).

Note 5.8

XTAL1/CLKIN can optionally be driven from a 25MHz single-ended clock oscillator.

Table 5.2 Non-Variable 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

Schmitt Trigger Hysteresis

(VIHT - VILT)

Input Leakage

(VIN = VSS or VDDIO)

Input Capacitance

VILI

VIHI

VILT

VIHT

VHYS

IIH

CIN

-0.3

1.01

1.39

336

-10

1.19

1.59

399

3.6

1.39

1.79

459

Schmitt trigger

Note 5.7

O12 Type Buffers

Low Output Level

High Output Level

VOL

VOH

VDD2A - 0.4

0.4

IOL = 12mA

IOH = -12mA

ICLK Type Buffer

(XTAL1 Input)

Low Input Level

High Input Level

VILI

VIHI

-0.3

1.4

0.35

VDD2A + 0.4

Note 5.8

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