LAN8720i SMSC [SMSC Corporation], LAN8720i Datasheet - Page 57

• Manufacturer Part Number: LAN8720i
• Description: Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
• Manufacturer: SMSC [SMSC Corporation]

Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
6.2.1.2
PARAMETER
T8.1
T8.2
Clock In -
TXD[1:0]
Data In -
TX_EN
CLKIN
100M RMII Transmit Timing (50MHz REF_CLK IN)
Transmit signals required setup to
rising edge of CLKIN
Transmit signals required hold
after rising edge of CLKIN
CLKIN frequency
Figure 6.3 100M RMII Transmit Timing Diagram (50MHz REF_CLK IN)
Table 6.3 100M RMII Transmit Timing Values (50MHz REF_CLK IN)
DESCRIPTION
T
8.1
DATASHEET
Valid Data
T
MIN
57
4
2
8.2
TYP
50
MAX
UNITS
MHz
ns
ns
Revision 1.0 (05-28-09)
NOTES