LAN8820
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.
Features- Single-Chip Ethernet Physical Layer Transceiver (PHY)
- Compliant with IEEE 802.3ab (1000BASE-T), IEEE 802.3u (Fast Ethernet), and ISO 802-3/IEEE 802.3 (10BASE-T)
- HP Auto-MDIX support in accordance with IEEE 802.3ab specification at 10/100/1000 Mbps operation
- Miniature 56-pin QFN RoHS compliant package with RGMII (8 x 8 x 0.85mm height)
- Flexible configurations for LED status indicators
- Implements Reduced Power Operating Modes
- High-Performance 10/100/1000 Ethernet Transceiver
Compliant with IEEE 802.3ab (1000BASE-T)
Compliant with IEEE 802.3/802.3u (Fast Ethernet)
Compliant with ISO 802-3/IEEE 802.3 (10BASE-T)
10BASE-T, 100BASE-TX and 1000BASE-T support
Loop-back modes
Auto-negotiation (NEXT page support)
Automatic polarity detection and correction
Link status change wake-up detection
Vendor specific register functions
Supports reduced pin count RGMII interface
Controlled impedance outputs
Supports RGMII ID mode
Four status LED outputs and configurable LED modes with support for tricolor operation
Compliant with IEEE 802.3-2005 standards
RGMII pins tolerant to 3.6V
Integrated DSP implements adaptive equalizer, echo cancellers, and crosstalk cancellers
Efficient digital baseline wander correction
- Compliant with IEEE 802.3ab (1000BASE-T)
- Compliant with IEEE 802.3/802.3u (Fast Ethernet)
- Compliant with ISO 802-3/IEEE 802.3 (10BASE-T)
- 10BASE-T, 100BASE-TX and 1000BASE-T support
- Loop-back modes
- Auto-negotiation (NEXT page support)
- Automatic polarity detection and correction
- Link status change wake-up detection
- Vendor specific register functions
- Supports reduced pin count RGMII interface
Controlled impedance outputs
Supports RGMII ID mode
- Controlled impedance outputs
- Supports RGMII ID mode
- Four status LED outputs and configurable LED modes with support for tricolor operation
- Compliant with IEEE 802.3-2005 standards
RGMII pins tolerant to 3.6V
- RGMII pins tolerant to 3.6V
- Integrated DSP implements adaptive equalizer, echo cancellers, and crosstalk cancellers
- Efficient digital baseline wander correction
- Power and I/Os
Configurable LED outputs
Various low power modes
2.5V I/O supply
- Configurable LED outputs
- Various low power modes
- 2.5V I/O supply
- Miscellaneous Features
IEEE 1149.1 (JTAG) boundary scan
Multiple clock options - 25MHz crystal or 125MHz clock
- IEEE 1149.1 (JTAG) boundary scan
- Multiple clock options - 25MHz crystal or 125MHz clock
- Packaging
56-pin QFN (8x8 mm) RoHS compliant package with RGMII
- 56-pin QFN (8x8 mm) RoHS compliant package with RGMII
- Environmental
Commercial temperature range (0°C to +70°C)
Industrial temperature range (-40°C to +85°C)
- Commercial temperature range (0°C to +70°C)
- Industrial temperature range (-40°C to +85°C)
- 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
| Parameter|
Parameter Name
Value
| Value | |
Description
RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
|
RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
| |
Ethernet Bandwidth
10Base-T/ 100Base-TX/1000Base-T
|
10Base-T/ 100Base-TX/1000Base-T
| |
Op. Voltage (V)
3.3
|
3.3
| |
LEDs
4
|
4
| |
# of Ethernet Ports
1
|
1
| |
Interface
RGMII
|
RGMII
| |
Temp. Range Min. (°C)
-40
|
-40
| |
Temp. Range Max. (°C)
85
|
85
| |
HP-Auto MDIX
Yes
|
Yes
| |
Interface1
RGMII
|
RGMII
| |
Supply Voltage (V)
1.2
|
1.2
| |
Vdd I/O (V)
2.5
|
2.5
|
|
Documents
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| LAN8820-ABZJ | 56 | VQFN | 0C to +70C | TRAY | 4.43 | 3.69 | 3.35 | 3.24 | 3.20 |
| LAN8820-ABZJ-TR | 56 | VQFN | 0C to +70C | T/R | 4.49 | 3.74 | 3.40 | 3.28 | 3.25 |
| LAN8820I-ABZJ | 56 | VQFN | -40C to +85C | TRAY | 5.09 | 4.24 | 3.86 | 3.73 | 3.69 |
| LAN8820I-ABZJ-TR | 56 | VQFN | -40C to +85C | T/R | 5.16 | 4.30 | 3.91 | 3.77 | 3.73 |
相关开发工具
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| LAN8820-ABZJ | 0.182460 | 1.192308 | 56 | VQFN | 8x8x0.9 | Matte Tin | e3 |  |  |
| LAN8820-ABZJ-TR | 0.182460 | 0.300000 | 56 | VQFN | 8x8x0.9 | Matte Tin | e3 | | |
| LAN8820I-ABZJ-TR | 0.182460 | 0.300000 | 56 | VQFN | 8x8x0.9 | Matte Tin | e3 | | |
| LAN8820I-ABZJ | 0.182460 | 1.192308 | 56 | VQFN | 8x8x0.9 | Matte Tin | e3 | | |
