ADM6999UX-A2-T-1

Overview

The ADM6999UX-A2-T-1 is a single-chip Ethernet switch controller manufactured by Infineon Technologies. It integrates eight 10/100 Mbps TX/FX ports and one 1.6 Gbps expansion port within a 128-pin PQFP package. The device supports full/half duplex switching, 802.1Q VLAN, and 802.1p QoS. It utilizes a built-in 768K SRAM for packet buffering and address learning. Power supply requirements are 1.8V and 3.3V, with an operating temperature range of 0°C to 115°C.

Feature Summary

• Integrates eight 10/100 Mbps auto-detect switch ports with twisted pair or fiber interfaces alongside a high-speed expansion bus.
• Supports advanced network management features including 802.1Q VLAN tagging, 802.1p priority queuing, and MAC address locking.
• Features store-and-forward architecture with non-blocking wire-speed forwarding and filtering capabilities.
• Includes automatic link polarity detection (Auto MDIX) and broadcast storm filtering for robust network operation.

Applications

• Construction of standalone 16-port Ethernet switches using dual-chip configurations
• High-performance network bridge implementations requiring integrated PHY and controller functions
• Building Internet access points utilizing port MAC address locking for security

Procurement Notes

Verify component authenticity through authorized Infineon distributors. Confirm the A2 suffix indicates the specific RTX resistor value configuration as documented in revision history. Check for end-of-life status as this model may be discontinued. Ensure environmental compliance with RoHS standards if applicable to the specific batch.

Selection Notes

Select this controller for designs requiring integrated switching logic and PHY management without external controllers. Consider the 128-pin PQFP package constraints for PCB layout. Verify power supply stability for both 1.8V and 3.3V domains. Evaluate thermal performance given the 115°C maximum operating temperature limit.

Part Context

This component belongs to the ADM6999 family of Ethernet switch controllers. The 'U' variant denotes the standard plastic package, while 'UX' indicates the environmentally friendly green package version. The 'A2' suffix specifies hardware revisions related to the RTX pin resistor tolerance and value adjustments documented in the datasheet revision history.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Infineon Technologies directly for current portfolio alternatives or cross-reference options based on specific interface and pinout compatibility requirements.