LAN8820 Series
RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
Manufacturer: Microchip Technology
Catalog
RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
Key Features
• Single-Chip Ethernet Physical Layer Transceiver (PHY)
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• Compliant with IEEE 802.3ab (1000BASE-T), IEEE 802.3u (Fast Ethernet), and ISO 802-3/IEEE 802.3 (10BASE-T)
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• HP Auto-MDIX support in accordance with IEEE 802.3ab specification at 10/100/1000 Mbps operation
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• Miniature 56-pin QFN RoHS compliant package with RGMII (8 x 8 x 0.85mm height)
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• Flexible configurations for LED status indicators
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• Implements Reduced Power Operating Modes
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• Compliant with IEEE 802.3ab (1000BASE-T)
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• Compliant with IEEE 802.3/802.3u (Fast Ethernet)
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• Compliant with ISO 802-3/IEEE 802.3 (10BASE-T)
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• 10BASE-T, 100BASE-TX and 1000BASE-T support
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• Loop-back modes
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• Auto-negotiation (NEXT page support)
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• Automatic polarity detection and correction
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• Link status change wake-up detection
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• Vendor specific register functions
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• Controlled impedance outputs
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• Supports RGMII ID mode
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• Four status LED outputs and configurable LED modes with support for tricolor operation
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• RGMII pins tolerant to 3.6V
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• Integrated DSP implements adaptive equalizer, echo cancellers, and crosstalk cancellers
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• Efficient digital baseline wander correction
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• Configurable LED outputs
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• Various low power modes
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• 2.5V I/O supply
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• IEEE 1149.1 (JTAG) boundary scan
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• Multiple clock options - 25MHz crystal or 125MHz clock
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• 56-pin QFN (8x8 mm) RoHS compliant package with RGMII
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• Commercial temperature range (0°C to +70°C)
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• Industrial temperature range (-40°C to +85°C)
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• 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
• * IP and Video Phones
• * Wireless Access Points
• * Digital Televisions
• * Digital Media Adaptors/Servers
• * Gaming Consoles
• * POE Applications
Description
AI
The Microchip LAN8820/LAN8820i is a low-power 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet physical layer (PHY) transceiver that is fully compliant with the IEEE 802.3 and 802.3ab standards.
The LAN8820/LAN8820i can be configured to communicate with an Ethernet MAC via the standard RGMII interface. It contains a full-duplex transceiver for 1000Mbps operation on four pairs of category 5 or better balanced twisted pair cable. Per IEEE 802.3-2005 standards, all digital interface pins are tolerant to 3.6V.
The LAN8820/LAN8820i is configurable via hardware and software, supporting both IEEE 802.3-2005 compliant and vendor-specific register functions via SMI. The LAN8820/LAN8820i implements Auto-Negotiation to automatically determine the best possible speed and duplex mode of operation. HP Auto-MDIX support allows the use of direct connect or cross-over cables.
Microchip's complimentary and confidential [MicroCHECK](https://www.microchip.com/en-us/support/design-help/design-check-services) design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/support/design-help/design-check-services/design-check-services-program-terms-and-conditions) and requires a myMicrochip account.
