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USB-to-Ethernet Dongle, AX88772B, 10/100Mbps, for OLinuXino US$14.50

USB-ETHERNET-AX88772B
USB-to-Ethernet Dongle, AX88772B, 10/100Mbps, for OLinuXino

The USB-ETHERNET-AX88772B is a USB-LAN dongle that is supported by OLinuXino boards.

Olimex tested four different dongles before declaring this one as the best performer on their OLinuXino boards.

The dongle, model KT-AX88772B, uses an Asix AX88772B Low-Power USB 2.0 to 10/100M Fast Ethernet Controller chip. Drivers are available for Windows, WinCE, Linux and Mac, so you aren't limited only to using this dongle on an OLinuXino board; use it on your PC, Mac, Linux box or any WinCE/Linux embedded system with a USB port.

The AX88772B features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1 and V2.0. The AX88772B implements 10/100Mbps Ethernet LAN function based on IEEE802.3 and IEEE802.3u standards with embedded SRAM for packet buffering. The AX88772B integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design.

AX88772B USB-to-Ethernet Chip Specifications

USB Device Interface

  • Integrates on-chip USB 2.0 transceiver and SIE compliant to USB Spec 1.1 and 2.0
  • Supports USB Full and High Speed modes with Bus-Power or Self-Power capability
  • Supports 4 or 6 programmable endpoints on USB interface
  • Supports AutoDetach power saving detach from USB host when Ethernet cable is unplugged
  • High-performance packet transfer rate over USB bus using proprietary burst transfer mechanism

Fast Ethernet Controller

  • Integrates 10/100Mbps Fast Ethernet MAC/PHY
  • IEEE 802.3 10Base-T/100Base-TX compatible
  • IEEE 802.3 100BASE-FX compatible
  • Supports twisted pair crossover detection and auto-correction (HP Auto-MDIX)
  • Embedded SRAM for RX/TX packet buffering
  • Supports IPv4 / IPv6 packet Checksum Offload Engine to reduce CPU loading, including IPv4 IP/TCP/UDP/ICMP/IGMP & IPv6 TCP/UDP/ICMPv6 checksum check & generation
  • Supports full-duplex operation with IEEE 802.3x flow control and half-duplex operation with back-pressure flow control
  • Supports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or preserved
  • PHY loop-back diagnostic capability

Wake-on-LAN Function

  • Supports Suspend Mode and Remote Wakeup via Link-change, Magic packet, MS wakeup frame and external wakeup pin
  • Supports Protocol Offloads (ARP & NS) for Windows 7 Networking Power Management
  • Optional PHY power down during Suspend mode

Advanced Power Management Features

  • Supports dynamic power management to reduce power dissipation during idle or light traffic period
  • Supports very low power Wake-on-LAN (WOL) mode when the system enters suspend mode and waits for network event to awake it up

Additional Features

  • Supports 256/512 bytes (93c56/93c66) of serial EEPROM (for storing USB Descriptors)
  • Supports embedded ID SRAM (online programmable memory for USB Device Descriptors, etc.) to save external EEPROM
  • Supports automatic loading of Ethernet ID, USB Descriptors and Adapter Configuration from EEPROM after power-on initialization
  • Integrates on-chip voltage regulator and only requires a single 3.3V power supply
  • Single 25MHz clock input from either crystal or oscillator source
  • Integrates on-chip power-on reset circuit
  • Small form factor with 64-pin LQFP RoHS compliant package

AX88772B Drivers are available for Windows, WinCE, Linux and Mac, so you aren't limited only to using this dongle on an OLinuXino board.


This product was added to our catalog on Friday 01 March, 2013.

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