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LAN9221

10/100 Base-T/TX Ethernet Controller with 16 Bit Interface

Status: In Production

Features:

  • Optimized for high performance applications
  • Efficient architecture with low CPU overhead
  • Easily interfaces to most 16-bit embedded CPU''s
  • 1.8V to 3.3V variable voltage I/O accommodates wide range of I/O signaling without voltage level shifters
  • Integrated PHY with HP Auto-MDIX support
  • Integrated checksum offload engine helps reduce CPU load
  • Low pin count and small body size package for small form factor system designs
  • Cable, satellite, and IP set-top boxes
  • Digital video recorders and DVD recorder/players
  • Digital TV
  • Digital media clients/servers and home gateways
  • Video-over IP solutions, IP PBX & video phones
  • Wireless routers & access points
  • High-end audio distribution systems
  • 16-bit interface with fast bus cycle times
  • Burst-mode read support
  • Internal buffer memory can store over 200 packets
  • Automatic PAUSE and back-pressure flow control
  • Supports Slave-DMA
  • Interrupt Pin with Programmable Hold-off timer
  • Reduces system cost and increases design flexibility
  • SRAM-like interface easily interfaces to most Embedded CPU''s or SoC''s
  • Numerous power management modes
  • Wake on LAN
  • Magic packet wakeup
  • Wakeup indicator event signal
  • Link Status Change
  • Fully compliant with IEEE 802.3/802.3u standards
  • Integrated Ethernet MAC and PHY
  • 10BASE-T and 100BASE-TX support
  • Full- and Half-duplex support
  • Full-duplex flow control
  • Backpressure for half-duplex flow control
  • Preamble generation and removal
  • Automatic 32-bit CRC generation and checking
  • Automatic payload padding and pad removal
  • Loop-back modes
  • One 48-bit perfect address
  • 64 hash-filtered multicast addresses
  • Pass all multicast
  • Promiscuous mode
  • Inverse filtering
  • Pass all incoming with status report
  • Disable reception of broadcast packets
  • Supports HP Auto-MDIX
  • Auto-negotiation
  • Supports energy-detect power down
  • Simple, SRAM-like interface
  • 16-bit data bus
  • 16Kbyte FIFO with flexible TX/RX allocation
  • One configurable host interrupt
  • Small form factor, 56-pin QFN RoHS Compliant package
  • Integrated 1.8V regulator
  • Integrated checksum offload engine
  • Mixed endian support
  • General Purpose Timer
  • Optional EEPROM interface
  • Support for 3 status LEDs multiplexed with Programmable GPIO signals
  • Single 3.3V Power Supply with Variable Voltage I/O
  • Commercial and Industrial Temperature Support
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The LAN9221/LAN9221i is a full-featured, single-chip 10/100 Ethernet controller designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9221/LAN9221i has been specifically designed to provide high performance and throughput for 16-bit applications. The LAN9221/LAN9221i is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant, and supports HP Auto-MDIX. The variable voltage I/O signals of the LAN9221/LAN9221i accommodate lower voltage I/O signalling without the need for voltage level shifters.

The LAN9221/LAN9221i includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface. The simple, yet highly functional host bus interface provides a glue-less connection to most common 16-bit microprocessors and microcontrollers as well as 32-bit microprocessors with a 16-bit external bus. The integrated checksum offload engines enable the automatic generation of the 16-bit checksum for received and transmitted Ethernet frames, offloading the task from the CPU. The LAN9221/LAN9221i also includes large transmit and receive data FIFOs to accommodate high latency applications. In addition, the LAN9221/LAN9221i memory buffer architecture allows highly efficient use of memory resources by optimizing packet granularity.

The 93AA46AE48 EEPROM device from Microchip comes with a factory programmed, globally unique EUI-48™ MAC Address. This Ethernet controller will automatically detect and load the EUI-48™ node address from the 93AA46AE48 EEPROM at start-up or reset. 


*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Additional Features

    Highlights

    • Optimized for high performance applications
    • Efficient architecture with low CPU overhead
    • Easily interfaces to most 16-bit embedded CPU's
    • 1.8V to 3.3V variable voltage I/O accommodates wide range of I/O signaling without voltage level shifters
    • Integrated PHY with HP Auto-MDIX support
    • Integrated checksum offload engine helps reduce CPU load
    • Low pin count and small body size package for small form factor system designs

    Target Applications

    • Cable, satellite, and IP set-top boxes
    • Digital video recorders and DVD recorder/players
    • Digital TV
    • Digital media clients/servers and home gateways
    • Video-over IP solutions, IP PBX & video phones
    • Wireless routers & access points
    • High-end audio distribution systems

    Key Benefits

    • Non-PCI Ethernet controller for high performance applications
      • 16-bit interface with fast bus cycle times
      • Burst-mode read support
    • Minimizes dropped packets
      • Internal buffer memory can store over 200 packets
      • Automatic PAUSE and back-pressure flow control
    • Minimizes CPU overhead
      • Supports Slave-DMA
      • Interrupt Pin with Programmable Hold-off timer
    • Reduces system cost and increases design flexibility
    • SRAM-like interface easily interfaces to most Embedded CPU's or SoC's
    • Reduced-Power Modes
      • Numerous power management modes
      • Wake on LAN
      • Magic packet wakeup
      • Wakeup indicator event signal
      • Link Status Change
    • Single chip Ethernet controller
      • Fully compliant with IEEE 802.3/802.3u standards
      • Integrated Ethernet MAC and PHY
      • 10BASE-T and 100BASE-TX support
      • Full- and Half-duplex support
      • Full-duplex flow control
      • Backpressure for half-duplex flow control
      • Preamble generation and removal
      • Automatic 32-bit CRC generation and checking
      • Automatic payload padding and pad removal
      • Loop-back modes
    • Flexible address filtering modes
      • One 48-bit perfect address
      • 64 hash-filtered multicast addresses
      • Pass all multicast
      • Promiscuous mode
      • Inverse filtering
      • Pass all incoming with status report
      • Disable reception of broadcast packets
    • Integrated 10/100 Ethernet PHY
      • Supports HP Auto-MDIX
      • Auto-negotiation
      • Supports energy-detect power down
    • Host bus interface
      • Simple, SRAM-like interface
      • 16-bit data bus
      • 16Kbyte FIFO with flexible TX/RX allocation
      • One configurable host interrupt
    • Miscellaneous features
      • Small form factor, 56-pin QFN RoHS Compliant package
      • Integrated 1.8V regulator
      • Integrated checksum offload engine
      • Mixed endian support
      • General Purpose Timer
      • Optional EEPROM interface
      • Support for 3 status LEDs multiplexed with Programmable GPIO signals
    • Single 3.3V Power Supply with Variable Voltage I/O
    • Commercial and Industrial Temperature Support
Parametrics
Name
Value
Description
10Base-T/100Base-TX Ethernet Controller with 16 bit interface
Ethernet Bandwidth
10/100Mbps
MAC
Yes
PHY
Yes
TX/RX RAM Buffer(Bytes)
16K
Interrupt Pin
1
LEDs
2
# Ethernet Ports
1
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
85
Mixed Endian
Yes
Checksum Offload
Yes
Interface
16 bit Host Bus
Vdd I/O (V)
3.3

Documents

Jump to:

Development Environment

  • Software Libraries
Software Libraries
LAN91xx/LAN92xx uboot driver for ARM

LAN91xx/LAN92xx uboot driver for ARM

Learn More
LAN91xx/LAN92xx VxWorks 5.5 driver on SH3 processor

LAN91xx/LAN92xx VxWorks 5.5 driver on SH3 processor

Learn More
LAN91xx/LAN92xx/LAN9311/LAN9312 eBoot Driver for XScale Processor

LAN91xx/LAN92xx/LAN9311/LAN9312 eBoot Driver for XScale Processor

Learn More
LAN91xx/LAN92xx/LAN9311/LAN9312 Linux Driver on SH3 Processor

LAN91xx/LAN92xx/LAN9311/LAN9312 Linux Driver on SH3 Processor

Learn More
LAN91xx/LAN92xx/LAN9311/LAN9312 Linux driver on XScale processor

LAN91xx/LAN92xx/LAN9311/LAN9312 Linux driver on XScale processor

Learn More
LAN91xx/LAN92xx/LAN9311/LAN9312 Windows CE 5.0 & 6.0 Driver

LAN91xx/LAN92xx/LAN9311/LAN9312 Windows CE 5.0 & 6.0 Driver

Learn More

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LAN9221I-ABZJ
0.182400
1.192308
56
VQFN
8x8x0.9
Matte Tin
e3
LAN9221-ABZJ
0.182400
1.192308
56
VQFN
8x8x0.9
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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