LAN8700 Datasheet, PDF (60/74 Pages) SMSC Corporation – ±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWR TM in a Small Footprint

LAN8700/LAN8700i
Note 7-2
Current measurements do not include power applied to the magnetics or the optional external LEDs.
Current measurements taken with VDDIO = +3.3V, unless otherwise indicated.
7.1.4 DC CHARACTERISTICS - INPUT AND OUTPUT BUFFERS
TABLE 7-5: MII BUS INTERFACE SIGNALS
Name
TXD0
TXD1
TXD2
TXD3
TX_EN
TX_CLK
RXD0/MODE0
RXD1/MODE1
RXD2/MODE2
RXD3/nINTSEL
RX_ER/RXD4
RX_DV
RX_CLK/REGOFF
CRS/PHYAD4
COL/RMII/CRS_DV
MDC
MDIO
nINT/TX_ER/TXD4
V_IH (V)
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
V_IL (V)
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
I_OH
I_OL
V_OL (V)
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
-8 mA +8 mA
+0.4
V_OH (V)
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
3.6
TABLE 7-6:
Name
TXP
TXN
RXP
RXN
LAN INTERFACE SIGNALS
V_IH
V_IL
I_OH
I_OL
V_OL
V_OH
See Table 7-12, “100Base-TX Transceiver Characteristics,” on page 62 and Table 7-13,
“10BASE-T Transceiver Characteristics,” on page 62.
TABLE 7-7: LED SIGNALS
Name
SPEED100/PHYAD0
LINK/PHYAD1
ACTIVITY/PHYAD2
FDUPLEX/PHYAD3
V_IH (V)
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
V_IL (V)
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
0.4 * VDDIO
I_OH
-12 mA
-12 mA
-12 mA
-12 mA
I_OL
+12 mA
+12 mA
+12 mA
+12 mA
V_OL (V)
+0.4
+0.4
+0.4
+0.4
V_OH (V)
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
DS00002260A-page 60
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