ADM6918ABT1

Overview

The ADM6918/X is an eighteen-port 10/100 Mbps Ethernet Switch Controller designed for low-cost ether-switch applications. It features sixteen ports with SS-SMII interfaces and two ports supporting MII/RMII interfaces, all capable of full duplex switching. The device supports up to 4096 MAC addresses using a 4-way hashing algorithm and includes embedded SRAM for proprietary buffer management with 256-byte allocation units. It operates on a 3.3 V/1.8 V power supply within a 128-pin QFP package.

Feature Summary

• Supports store-and-forward architecture with non-blocking full wire speed forwarding and filtering capabilities.
• Enables flexible port trunking for fault tolerance and load balancing across server or stacked switch connections.
• Provides comprehensive Quality of Service (QoS) through Port-base, 802.1p, and IP TOS priority support.

Applications

• Stand-alone bridge implementations for cost-effective Ethernet switches
• Server connection via active trunking ports
• Stacked switch box configurations

Procurement Notes

Verify the specific ordering suffix against Infineon's current documentation to confirm package type and environmental compliance. Confirm that the component meets the required industrial temperature range and voltage specifications for the target design before finalizing procurement.

Selection Notes

Select this controller when designing systems requiring eighteen 10/100 Mbps ports with mixed interface options. Ensure the design accommodates the 128-pin QFP footprint and dual voltage requirements. Verify compatibility with external PHY devices if utilizing the MII/RMII ports for standard Ethernet connectivity.

Part Context

This component belongs to the ADM6918 family of Ethernet Switch Controllers. It serves as a high-performance, low-cost solution for bridging network segments. The 'X' designation typically indicates an environmentally friendly green package version compliant with specific manufacturing standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Infineon resources for cross-reference data or updated product line replacements.