ADM6996M

Product Summary

The ADM6996M is a high performance, low cost, highly integrated (Controller, PHY and Memory) four 10M/100M auto-detect Half/Full duplex switch ports with TX/FX interfaces and two MII port with one MII supporting GPSI/RMII. The ADM6996M is intended for applications such as stand alone bridges for the low cost SOHO markets such as 5-port switches and router applications. The ADM6996M is the environmentally friendly“green” package version. It also supports back pressure in Half-Duplex mode and the 802.3x Flow Control Pause packet in Full-Duplex mode to prevent packet loss when buffers are full. The applications of it are SOHO 5-port switch, 5-port switch + Router with 2 MII CPU interface.

Parametrics

ADM6996M absolute maximum ratings: (1)3.3 V Power Supply for I/O pad:2.97V to 3.63V; (2)3.3 V Power Supply for bias circuit:2.97V to 3.63V ; (3)3.3 V Power Supply for A/D converter:2.97V to 3.63V ; (4)1.8 V Power Supply for line driver:1.62V to 1.98V ; (5)1.8 V Power Supply for PLL:1.62V to 1.98V ; (6)1.8 V Power Supply for Digital core:1.62V to 1.98V ; (7)Input Voltage:-0.3V to VCC3O + 0.3V; (8)Output Voltage:-0.3V to VCC3O + 0.3V; (9)Maximum current for 3.3 V power supply:100 mA ; (10)Maximum current for 1.8 V power supply (include transformer):800 mA ; (11)Storage Temperature:-55℃ to 155℃; (12)ESD Rating:1.0kV.

Features

ADM6996M features: (1)2K MAC address tables with 4-ways associative hash algorithm; (2)6KX64 bits packet buffers are divided into 192 blocks of 256 bytes each; (3)Four queues for QoS; (4)Priority features by Port-Based, 802.1p, IP TOS, Diffserv, TCP/UDP Port Application-Based of packets; (5)Store & Forward architecture and performs forwarding and filtering at non-blocking full wire speed; (6)Single/Dual color LED mode with Power On auto diagnostic. Collision/Duplex LED can be separated using register setting; (7)802.3x Flow Control pause packet for Full Duplex; (8)Back Pressure function for Half Duplex operation; (9)Supports packet lengths up to 1518/1522 (Default)/1536/1784 bytes in maximum; (10)Scalable Per Port Bandwidth Control (Both Ingress and Egress); (11)Broadcast/Multicast Storm Suppression; (12)Supports 32 hardware IGMP Table (Multicast Table); (13)MAC Address Table is accessible; (14)Supports 802.1x security function; (15)Supports Spanning Tree Protocol; (16)Supports internal counter/PHY status output for management system; (17)25M Crystal; (18)128 QFP package with 0.18 μm technology. 1.8 V/3.3 V power supply; (19)1.0 W low power consumption.

Diagrams