lan8720 Standard Microsystems Corp., lan8720 Datasheet - Page 59
lan8720
Manufacturer Part Number
lan8720
Description
Small Footprint Rmii 10/100 Ethernet Transceiver With Hp Auto-mdix Support
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN8720.pdf
(78 pages)
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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
6.2.2.2
PARAMETER
T10.1
T10.2
10M RMII Transmit Timing (50MHz REF_CLK IN)
Clock In -
TXD[1:0]
Data In -
TX_EN
CLKIN
Transmit signals required setup to
rising edge of CLKIN
Transmit signals required hold
after rising edge of CLKIN
CLKIN frequency
Figure 6.5 10M RMII Transmit Timing Diagram (50MHz REF_CLK IN)
Table 6.5 10M RMII Transmit Timing Values (50MHz REF_CLK IN)
DESCRIPTION
T
DATASHEET
10.1
Valid Data
59
MIN
4
2
T
TYP
10.2
50
MAX
UNITS
MHz
ns
ns
Revision 1.0 (04-15-09)
NOTES
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