LAN7500I-ABZJ

Controllers Overview

The LAN7500I-ABZJ is a single-chip Hi-Speed USB 2.0 to 10/100/1000 Ethernet controller manufactured by Microchip Technology. It integrates a 10/100/1000 Ethernet MAC and PHY, a USB 2.0 Hi-Speed Device Controller, and a USB PHY within a 56-pin QFN (8x8 mm) package. The device supports data rates of 480 Mbps for USB High Speed and 12 Mbps for Full Speed, alongside Ethernet speeds of 10 Mbps, 100 Mbps, and 1000 Mbps. It operates with supply voltages of 1.2V, 2.5V, and 3.3V, and functions within an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrates a fully compliant USB 2.0 Hi-Speed Device Controller with four endpoints and autonomous protocol handling.
• Includes an IEEE 802.3/802.3u/802.3ab compliant 10/100/1000 Ethernet MAC and PHY with HP Auto-MDIX support.
• Features host offloading capabilities for TCP/UDP/IP checksums and Large Send Offload to reduce CPU burden.
• Supports multiple low-power suspend modes with programmable remote wakeup events such as Magic Packet and Link Status Change.

Controllers Applications

• Embedded Systems and Consumer Electronics Devices
• Set-Top Boxes and Personal Video Recorders (PVRs)
• Networked Printers
• USB Port Replicators
• Standalone USB to Ethernet Dongles

Controllers Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature rating (-40°C to +85°C) against the commercial variant. Confirm the 'ABZJ' suffix corresponds to the 56-pin QFN package and RoHS compliance status. Ensure the source document explicitly lists this exact part number to avoid confusion with similar LAN7500 family members.

Controllers Selection Notes

Select this component when a single-chip solution for USB-to-Ethernet connectivity is required without external PHY or MAC components. Consider the integrated EEPROM controller for configuration storage needs. Evaluate the power management features if battery-operated or low-power embedded applications are targeted. Verify driver availability for the target operating system, including Windows, Linux, and Win CE.

Controllers Part Context

The LAN7500I-ABZJ belongs to the LAN7500 series of high-performance USB to Ethernet controllers. It serves as a bridge between USB hosts and Ethernet networks, consolidating functionality that would otherwise require separate chips. The 'I' designation typically indicates industrial-grade environmental specifications compared to commercial variants.

Controllers Replacement Considerations

Public confirmed substitute part numbers: LAN7500-ABZJ (Commercial temperature range).

Controllers FAQ

Does the LAN7500I-ABZJ support operation without an external EEPROM?

Yes, the device supports EEPROM-less operation where the Host LAN Driver sets the IEEE addresses and configuration after reset.

What is the maximum Ethernet speed supported by the integrated PHY?

The integrated PHY supports 1000BASE-T (1000 Mbps) in full-duplex mode, as well as 100BASE-TX and 10BASE-T.

How many GPIO pins are available on the LAN7500I-ABZJ?

The device supports twelve General Purpose I/O (GPIO) pins, which can also serve as remote wakeup events in suspended states.