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What is LAN8710Ai?

This electronic component, produced by the manufacturer "SMSC", performs the same function as "Small Footprint MII/RMII 10/100 Ethernet Transceiver".


LAN8710Ai Datasheet PDF - SMSC

Part Number LAN8710Ai
Description Small Footprint MII/RMII 10/100 Ethernet Transceiver
Manufacturers SMSC 
Logo SMSC Logo 


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LAN8710A/LAN8710Ai
Small Footprint MII/RMII 10/100 Ethernet
Transceiver with HP Auto-MDIX and
flexPWR® Technology
PRODUCT FEATURES
Datasheet
Highlights
„ Single-Chip Ethernet Physical Layer Transceiver
(PHY)
„ Comprehensive flexPWR® Technology
— Flexible Power Management Architecture
— LVCMOS Variable I/O voltage range: +1.6V to +3.6V
— Integrated 1.2V regulator with disable feature
„ HP Auto-MDIX support
„ Small footprint 32-pin QFN lead-free RoHS compliant
package (5 x 5 x 0.9mm height)
Target Applications
„ Set-Top Boxes
„ Networked Printers and Servers
„ Test Instrumentation
„ LAN on Motherboard
„ Embedded Telecom Applications
„ Video Record/Playback Systems
„ Cable Modems/Routers
„ DSL Modems/Routers
„ Digital Video Recorders
„ IP and Video Phones
„ Wireless Access Points
„ Digital Televisions
„ Digital Media Adaptors/Servers
„ Gaming Consoles
„ POE Applications (Refer to SMSC Application Note 17.18)
Key Benefits
„ High-Performance 10/100 Ethernet Transceiver
— Compliant with IEEE802.3/802.3u (Fast Ethernet)
— Compliant with ISO 802-3/IEEE 802.3 (10BASE-T)
— Loop-back modes
— Auto-negotiation
— Automatic polarity detection and correction
— Link status change wake-up detection
— Vendor specific register functions
— Supports both MII and the reduced pin count RMII
interfaces
„ Power and I/Os
— Various low power modes
— Integrated power-on reset circuit
— Two status LED outputs
— Latch-Up Performance Exceeds 150mA per EIA/JESD
78, Class II
— May be used with a single 3.3V supply
„ Additional Features
— Ability to use a low cost 25Mhz crystal for reduced BOM
„ Packaging
— 32-pin QFN (5x5 mm) Lead-Free RoHS Compliant
package with MII and RMII
„ Environmental
— Extended commercial temperature range
(0°C to +85°C)
— Industrial temperature range version available
(-40°C to +85°C)
SMSC LAN8710A/LAN8710Ai
DATASHEET
Revision 1.4 (08-23-12)

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LAN8710Ai equivalent
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology
Datasheet
List of Figures
Figure 1.1 System Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 1.2 Architectural Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2.1 32-QFN Pin Assignments (TOP VIEW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3.1 100BASE-TX Transmit Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3.2 100BASE-TX Receive Data Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 3.3 Relationship Between Received Data and Specific MII Signals . . . . . . . . . . . . . . . . . . . . . . 24
Figure 3.4 Direct Cable Connection vs. Cross-over Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 3.5 MDIO Timing and Frame Structure - READ Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 3.6 MDIO Timing and Frame Structure - WRITE Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 3.7 LED1/REGOFF Polarity Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 3.8 LED2/nINTSEL Polarity Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 3.9 Near-end Loopback Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 3.10 Far Loopback Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 3.11 Connector Loopback Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 3.12 Simplified System Level Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 3.13 Power Supply Diagram (1.2V Supplied by Internal Regulator) . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 3.14 Power Supply Diagram (1.2V Supplied by External Source) . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 3.15 Twisted-Pair Interface Diagram (Single Power Supply) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 3.16 Twisted-Pair Interface Diagram (Dual Power Supplies). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 5.1 Output Equivalent Test Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 5.2 Power Sequence Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 5.3 Power-On nRST & Configuration Strap Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 5.4 MII Receive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 5.5 MII Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 5.6 RMII Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 5.7 SMI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 6.1 32-QFN Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 6.2 Recommended PCB Land Pattern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 6.3 Taping Dimensions and Part Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 6.4 Reel Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 6.5 Tape Length and Part Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
SMSC LAN8710A/LAN8710Ai
5
DATASHEET
Revision 1.4 (08-23-12)


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