88E2040LA1-BUT4I000

Overview

The Marvell 88E2040LA1-BUT4I000 is a quad-port, five-speed Ethernet transceiver belonging to the Alaska M family. It supports IEEE 802.3bz-compliant data rates of 10 Mbps, 100 Mbps, 1 Gbps, 2.5 Gbps, and 5 Gbps over UTP copper lines. The device features a 484-pin HFCBGA package measuring 23 mm by 23 mm. Host-side connectivity is provided via 5GBASE-R, 2500BASE-X, or SGMII interfaces. It operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports five-speed operation across legacy and multi-gigabit Ethernet standards
• Compliant with IEEE 802.3bz specifications for 2.5G and 5G modes
• Enables dense multi-port applications with low power consumption
• Provides Clause 45 MDC/MDIO management interface support

Applications

• Industrial network infrastructure requiring wide temperature tolerance
• Multi-port access points supporting high-density wireless backhaul
• Structured wiring systems utilizing Category 6A or Category 7 cables
• Network switches requiring backward compatibility with legacy speeds

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and operating temperature grade. Ensure that the selected variant matches the required industrial or commercial specifications for the target application environment.

Selection Notes

Select this component when a quad-port solution is required for structured cabling environments. The device accommodates various cable types including screened, unscreened, and augmented categories up to 100 meters. Verify host interface compatibility with 5GBASE-R, 2500BASE-X, or SGMII protocols before integration.

Part Context

This part belongs to the Marvell Alaska M series of physical layer devices. The family includes single-port variants like the 88E2010 and quad-port models such as the 88E2040L. These components are designed to provide flexible, energy-efficient solutions for modern Ethernet deployments.

Replacement Considerations

The 88E2010 serves as a single-port alternative within the same product family. Other compatible options include the standard 88E2040L for commercial-grade applications. Verify pinout and thermal requirements when substituting between variants.

FAQ

What host-side interfaces does the 88E2040L support?

The device supports 5GBASE-R, 2500BASE-X, and SGMII system-side interfaces.

Does the device support auto-downshift functionality?

Yes, the device includes auto-downshift capabilities to maintain link integrity on lower-quality cabling.

What is the maximum reach for 2.5G and 5G modes?

The device supports a 100-meter reach on CAT 5e cables for both 2.5G and 5G modes.