LAN9500A-ABZJ

Controllers Overview

The LAN9500A-ABZJ is a single-chip Hi-Speed USB 2.0 to 10/100 Ethernet controller manufactured by Microchip Technology. It integrates a 10/100 Ethernet MAC with full-duplex support, an Ethernet PHY with HP Auto-MDIX, and a USB 2.0 Hi-Speed Device Controller with integrated PHY. The device supports 480 Mbps and 12 Mbps USB modes, IEEE 802.3/802.3u standards, and includes 30 KB of internal packet buffering (2 KB TLI, 28 KB FIFO). It operates on a single 3.3V I/O supply with an internal core regulator, requires a single 25 MHz crystal, and features 11 GPIOs. Available in a 56-pin QFN (8x8 mm) RoHS-compliant package, it supports commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature ranges.

Controllers Feature Summary

• Integrates Hi-Speed USB 2.0 device controller and 10/100 Ethernet MAC/PHY for compact connectivity solutions.
• Supports advanced power management including NetDetach feature and multiple suspend states for optimized energy consumption.
• Includes EEPROM controller for automatic loading of USB configuration parameters and MAC address upon reset.

Controllers Applications

• Embedded Systems
• Set-Top Boxes
• Standalone USB to Ethernet Dongles

Controllers Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm temperature range and packaging type. Ensure compatibility with system requirements for the EXRES resistor value, which differs from previous family members. Confirm that the design utilizes the correct external components specified for the LAN9500A variant to maintain electrical performance.

Controllers Selection Notes

Select this component when a pin-compatible upgrade from the LAN9500/LAN9500i is required with added features like NetDetach and Suspend State Good Packet Wake. Verify that the application can accommodate the specific EXRES resistor value (12.0K Ohm) and does not require the pull-up resistor on the XO/XI pins present in earlier versions. Ensure software drivers for the target operating system are available.

Controllers Part Context

The LAN9500A-ABZJ belongs to the LAN950x family, which also includes the LAN9500, LAN9500i, and LAN9500Ai. While pin-compatible with the LAN9500/LAN9500i, the LAN950A/Ai variants offer enhanced power management capabilities such as the NetDetach feature and additional suspend states. The 'ABZJ' suffix typically denotes the industrial temperature range and tray packaging, though verification with the manufacturer is recommended.

Controllers Replacement Considerations

LAN9500AI-ABZJ-TR