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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
Revision 1.0 (05-28-09) 70 SMSC LAN8720/LAN8720i
DATASHEET
7.1.4 DC Characteristics - Input and Output Buffers
Table 7.6 RMII Bus Interface Signals
NAME V
IH
(V) V
IL
(V) I
OH
I
OL
V
OL
(V) V
OH
(V)
TXD0 0.68 * VDDIO 0.4 * VDDIO
TXD1 0.68 * VDDIO 0.4 * VDDIO
TXEN 0.68 * VDDIO 0.4 * VDDIO
TXCLK -8 mA +8 mA +0.4 VDDIO – +0.4
RXD0/MODE0 -8 mA +8 mA +0.4 VDDIO – +0.4
RXD1/MODE1 -8 mA +8 mA +0.4 VDDIO – +0.4
RXER/PHYAD0 -8 mA +8 mA +0.4 VDDIO – +0.4
CRS_DV/MODE2 -8 mA +8 mA +0.4 VDDIO – +0.4
MDC 0.68 * VDDIO 0.4 * VDDIO
MDIO 0.68 * VDDIO 0.4 * VDDIO -8 mA +8 mA +0.4 VDDIO – +0.4
nINT/REFCLKO -8 mA +8 mA +0.4 3.6