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Infineon Technologies ADM6996LCX-AD-T-1
- Part No.:
- ADM6996LCX-AD-T-1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-LQFP
- Datasheet:
-
ADM6996LCX-AD-T-1.pdf
- Description:
- IC SWITCH ETHER 5PORT 128-FQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
ADM6996LCX-AD-T-1 from Infineon Technologies is a five-port 10/100 Mbps L2 Ethernet switch controller with integrated MDIX TX/FX transceivers, hardware/software IGMP snooping, 16 VLAN support, Layer 4 QoS, and 802.1x security-designed for ADSL routers and home gateways requiring deterministic traffic prioritization and multicast management.
For engineers reviewing the ADM6996LCX-AD-T-1 datasheet, ADM6996LCX-AD-T-1 pinout, ADM6996LCX-AD-T-1 application, or ADM6996LCX-AD-T-1 equivalent, key selection criteria include 128-pin LQFP package compatibility, RMII/MII interface support, 1784-byte maximum packet length, and hardware-accelerated IGMP/STP functions in cost-sensitive residential broadband equipment.
Technical Context
The ADM6996LCX-AD-T-1 implements a full L2 switching fabric with 2K-entry MAC address table using 4-layer hashing, supports both MII and RMII host interfaces, and integrates six 10/100 PHY analog front-ends with auto-MDIX on all ports. Its learning handler and frame parser enable wire-speed forwarding with per-port ingress/egress bandwidth control scalable from 64 Kbps to 100 Mbps.
It delivers differentiated service via IPv4/v6 DiffServ priority tagging, TCP/UDP destination port–based filtering, and hardware-accelerated PPPoE identification-rejecting non-PPPoE frames at ingress. Multicast broadcast storm protection and 12-bit VLAN ID learning are implemented in dedicated on-die tables without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 5× 10/100 Mbps Ethernet ports with integrated TX/FX PHYs and auto-MDIX |
| Switch Fabric | L2 switching with 2K MAC address table, 4-layer hash lookup, zero-latency learning |
| Max Packet Length | 1784 bytes-enables jumbo frame handling for VoIP and IPTV payload efficiency |
| Interface Support | MII and RMII host interfaces-enables direct connection to ARM9/ARM11 or MIPS-based SoCs |
| Power Dissipation | 1.0 W typical-meets thermal envelope requirements for fanless DSL router enclosures |
| VLAN Capacity | 16 active VLANs with 12-bit VLAN ID learning-supports service provider segmentation and QoS isolation |
| Security Features | 802.1x authentication, MAC address filtering (accept/reject), and PPPoE-only ingress filtering |
Pinout & Package
ADM6996LCX-AD-T-1 is housed in a 128-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions align with Infineon's Samurai family pinout standard for drop-in compatibility across ADM6996 variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDC/MDIO | IEEE 802.3 management interface | Allows configuration of PHY registers and switch registers via serial bus without dedicated SPI/I2C |
| RMII_CLK/REFCLK | Reference clock input | Accepts 50 MHz crystal or external clock for RMII timing synchronization |
| TXD[3:0]/RXD[3:0] | RMII data bus | 4-bit parallel RMII interface supporting 10/100 Mbps full/half duplex operation |
| LED[4:0] | Status indicator outputs | Dedicated open-drain outputs per port for link/activity/speed status without GPIO overhead |
| XTAL_IN/XTAL_OUT | Crystal oscillator interface | Drives internal PLL generating core clocks; supports 25 MHz fundamental-mode crystal |
Key Features
| Feature | Design Value |
|---|---|
| Hardware IGMP Snooping | Enables multicast-efficient video-on-demand delivery by suppressing unnecessary flooding to inactive ports |
| Layer 4 QoS Engine | Classifies and prioritizes traffic based on TCP/UDP destination port, IP protocol ID, and Ethernet type-critical for VoIP jitter control |
| Advanced Filtering | Supports TCP/UDP port, IP protocol, and EtherType filters-reduces CPU load in firewall/NAT applications |
| Port Mirroring | Non-intrusive real-time traffic capture on any port for network monitoring or intrusion detection |
| Multicast Storm Protection | Automatically limits broadcast/multicast rate per port-prevents LAN congestion during topology changes or misconfigurations |
Applications
| ADSL Router | Home Gateway |
|---|---|
Use Scenario: Residential broadband aggregation with PPPoE termination, NAT, and VoIP support. IC Role / Device Role / Timing Role: Central L2 switch controller managing WAN/LAN traffic separation, VLAN tagging, and QoS scheduling. Use Value: Hardware IGMP snooping reduces multicast bandwidth waste; 1784-byte packet support improves VoIP RTP payload efficiency. | Use Scenario: Multi-service gateway integrating Wi-Fi, USB storage, and IPTV streaming. IC Role / Device Role / Timing Role: Traffic manager enforcing priority queues for real-time video, voice, and best-effort data. Use Value: L4 QoS engine applies TCP port–based rules to prioritize SIP/RTP over HTTP/FTP, ensuring call quality. |
| Cable Modem | Wireless Router |
Use Scenario: DOCSIS-compliant cable modem with embedded routing and firewall functions. IC Role / Device Role / Timing Role: Switch fabric enabling simultaneous upstream/downstream traffic shaping and DoS mitigation. Use Value: Advanced filtering blocks malicious UDP floods at hardware level; 802.1x enforces authenticated LAN access. | Use Scenario: Dual-band 802.11ac router with wired backhaul and guest network isolation. IC Role / Device Role / Timing Role: VLAN-aware switch core segregating guest, IoT, and trusted traffic domains. Use Value: 16 VLANs and 12-bit VLAN ID learning allow strict policy enforcement without software overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar L2 Ethernet switch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM6996M-128 | Includes IPv4/v6 DiffServ, TAG PRI replacement, and enhanced IGMP snooping not present in LC variant | Targeted at carrier-grade CPE requiring IPv6 readiness and deeper QoS granularity | Select when IPv6 migration path or advanced DiffServ marking is required |
| RTL8306SD-GR | 6-port 10/100 switch with 16K MAC table but no integrated PHYs; requires external PHYs and lacks PPPoE identification | Suitable for industrial switches where PHY flexibility and extended temperature range matter more than integrated cost reduction | Select when discrete PHY selection, extended temp operation, or larger MAC table is prioritized over integration |
Compared with ADM6996M-128, the LC variant trades IPv6 DiffServ and TAG replacement for lower BOM cost and smaller footprint; versus RTL8306SD-GR, it delivers higher integration and PPPoE-aware security at the expense of PHY flexibility and MAC table depth.
Availability
ADM6996LCX-AD-T-1 is available at Aetrix Electronics and suitable for ADSL routers, home gateways, and cable modems requiring stable component supply, long-lifecycle support, and pin-compatible migration from legacy ADM6995/6L series.
Supply support for ADM6996LCX-AD-T-1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and communications solutions, with global R&D centers and ISO/TS 16949-certified manufacturing.
The Samurai product line was developed specifically for residential broadband CPE-integrating switch logic, PHYs, and memory into single-chip solutions to reduce bill-of-materials cost and board space in DSL/cable/Wi-Fi routers.
FAQ
Does ADM6996LCX-AD-T-1 support Jumbo Frames?
Yes, it supports up to 1784-byte frames-exceeding standard 1518-byte Ethernet frames. This enables efficient transport of VoIP RTP payloads and IPTV MPEG-TS packets without fragmentation, reducing processing overhead in resource-constrained CPE devices.
What is the role of the RMII interface in this device?
The RMII interface provides a 2-pin clock plus 4-bit data path (TXD/RXD) for connecting to host processors like ARM9 or MIPS SoCs. It reduces pin count versus MII while maintaining 10/100 Mbps throughput, simplifying PCB layout and lowering system-level I/O costs in compact router designs.
Can ADM6996LCX-AD-T-1 operate without an external EEPROM?
Yes-it boots from internal ROM with default configuration. External EEPROM is optional and used only to store custom settings such as VLAN maps, port mirroring rules, or IGMP snooping parameters. Factory defaults ensure functional operation even if EEPROM is omitted.
How does the hardware PPPoE identification function work?
It inspects incoming Ethernet frames at line rate and discards any frame not containing a valid PPPoE header (EtherType 0x8864). This offloads PPPoE session validation from the host CPU and prevents non-PPPoE traffic from consuming switch resources in DSL deployments.
ADM6996LCX-AD-T-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-LQFP
- Programmable:
- Not Verified
- Protocol:
- Ethernet
- Function:
- Switch
- Interface:
- Parallel
- Standards:
- 10/100 Base-T/TX PHY
- Voltage - Supply:
- 2.8V ~ 3.465V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 115°C
- Supplier Device Package:
- PG-BFQFP-128
- Grade:
- -
- Qualification:
- -
ADM6996LCX-AD-T-1 FAQ
1.How can I place an order for ADM6996LCX-AD-T-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6996LCX-AD-T-1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADM6996LCX-AD-T-1 reliable?
The price and inventory of ADM6996LCX-AD-T-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6996LCX-AD-T-1 is usually 5 days.
3.What payment methods are accepted for ADM6996LCX-AD-T-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6996LCX-AD-T-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6996LCX-AD-T-1?
ADM6996LCX-AD-T-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6996LCX-AD-T-1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADM6996LCX-AD-T-1?
For technical support, including ADM6996LCX-AD-T-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6996LCX-AD-T-1 requirements.
6.How does Aetrix verify that ADM6996LCX-AD-T-1 is sourced from the original manufacturer or authorized distributors?
All ADM6996LCX-AD-T-1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADM6996LCX-AD-T-1 meets industry standards.
7.What is the process for return or replacement of ADM6996LCX-AD-T-1?
All ADM6996LCX-AD-T-1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6996LCX-AD-T-1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADM6996LCX-AD-T-1 part is unused and in its original packaging.
Return procedure for ADM6996LCX-AD-T-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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