LAN8720A-CP-TR SMSC, LAN8720A-CP-TR Datasheet - Page 74

• Manufacturer Part Number: LAN8720A-CP-TR
• Description: Ethernet ICs RMII 10/100 ETH XCVR w/HP AutoMDIXSupport
• Manufacturer: SMSC

Specifications of LAN8720A-CP-TR

• Product: Ethernet Transceivers
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.2 (11-10-10)
5.5.5
SYMBOL
t
t
(Data-Out)
t
t
ohold
MDIO
MDIO
t
ihold
t
clkp
clkh
t
(Data-In)
clkl
val
su
MDC
SMI Timing
This section specifies the SMI timing of the device. Please refer to
Interface (SMI)," on page 28
t
ohold
MDC period
MDC high time
MDC low time
MDIO (read from PHY) output valid from rising
edge of MDC
MDIO (read from PHY) output hold from rising
edge of MDC
MDIO (write to PHY) setup time to rising edge
of MDC
MDIO (write to PHY) input hold time after rising
edge of MDC
t
val
DESCRIPTION
Table 5.12 SMI Timing Values
for additional details.
t
ohold
t
Figure 5.6 SMI Timing
clkh
DATASHEET
t
clkp
t
74
clkl
Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
160 (80%)
160 (80%)
MIN
400
10
10
0
t
su
Section 3.5, "Serial Management
MAX
300
t
ihold
SMSC LAN8720A/LAN8720Ai
UNITS
ns
ns
ns
ns
ns
ns
ns
NOTES
Datasheet