LAN9500AI-ABZJ-TR

Controllers Overview

The LAN9500AI-ABZJ-TR is a single-chip Hi-Speed USB 2.0 to 10/100 Ethernet controller from Microchip Technology, part of the LAN950x family. It integrates a USB 2.0 High-Speed Device Controller with PHY and a 10/100 Ethernet MAC with PHY supporting HP Auto-MDIX. The device operates at data rates of 480 Mbps (USB HS) and 12 Mbps (USB FS), with Ethernet speeds of 10BASE-T and 100BASE-TX. It features 30 KB of internal packet buffering (2 KB TLI, 28 KB FIFO). Power specifications include a 3.3V I/O supply with an internal core regulator. The component is housed in a 56-pin QFN package (8x8 mm) and supports industrial temperature ranges (-40°C to +85°C).

Controllers Feature Summary

• Integrates USB 2.0 High-Speed Device Controller and 10/100 Ethernet MAC/PHY on a single chip.
• Supports advanced power management modes including NetDetach and PCI-like PME wake-up.
• Includes an EEPROM controller for automatic loading of USB configuration and MAC address.
• Features IEEE 1149.1 compliant JTAG boundary scan and multiple low-power suspend states.

Controllers Applications

• Embedded Systems
• Set-Top Boxes
• Personal Video Recorders (PVRs)
• Consumer Electronics Devices
• Networked Printers

Controllers Procurement Notes

Verify the specific suffix ABZJ corresponds to the required temperature grade and packaging format against the manufacturer's current datasheet. Confirm that the -TR designation indicates tape-and-reel delivery. Ensure compatibility with system voltage requirements and external component values, particularly the EXRES resistor, which differs between LAN9500A/Ai variants and older models.

Controllers Selection Notes

Select this component when a compact solution for USB-to-Ethernet bridging is required without external PHYs. The LAN9500Ai variant offers enhanced wake-up filtering compared to the base LAN9500. Consider the industrial temperature range if operating in harsh environments. Verify driver support for the target operating system, as Windows, Linux, Win CE, and Mac OS drivers are available.

Controllers Part Context

The LAN9500AI-ABZJ-TR belongs to the LAN950x family, which includes the LAN9500, LAN9500i, LAN9500A, and LAN9500Ai. These devices are pin-compatible but differ in feature sets such as power management capabilities and EEPROM handling. The LAN9500A/Ai series introduces additional low-power modes and improved wake-up frame filtering not present in the original LAN9500/LAN9500i designs.

Controllers Replacement Considerations

LAN9500A-ABZJ-TR

Controllers FAQ

What is the difference between LAN9500A and LAN9500Ai?

The LAN9500Ai includes additional low-power features such as Suspend State Good Packet Wake-up and increased wakeup frame filtering capabilities compared to the standard LAN9500A.

Does the LAN9500AI require an external crystal oscillator?

Yes, the device requires a single external 25 MHz crystal oscillator for clock generation.

Can the LAN9500AI operate without an external EEPROM?

Yes, the LAN9500A and LAN9500Ai variants support custom operation without an EEPROM, allowing for flexible configuration via software or other means.