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Infineon Technologies ADM6996LAAT1
- Part No.:
- ADM6996LAAT1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6996LAAT1.pdf
- Description:
- IC SWITCH CTRLR 10/100 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,881
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Product details
Overview
ADM6996LAAT1 from Infineon Technologies is a 10/100 Mbps Ethernet switch controller IC in a 128-pin QFP package, supporting IEEE 802.3u Fast Ethernet, integrated MAC and PHY interface, and embedded SRAM for packet buffering. It targets managed industrial Ethernet edge switches requiring deterministic latency and multi-port bridging.
For engineers reviewing the ADM6996LAAT1 datasheet, ADM6996LAAT1 pinout, ADM6996LAAT1 application, or ADM6996LAAT1 equivalent, key selection criteria include MII/RMII interface compatibility, 8-port switching capacity, integrated memory size, and industrial temperature grade support (–40°C to +85°C).
Technical Context
The ADM6996LAAT1 implements a non-blocking 8-port Layer 2 switch fabric with store-and-forward packet handling and IEEE 802.1Q VLAN tagging. It integrates dual MII interfaces for upstream CPU connection and supports RMII for reduced pin count.
Its embedded 128 KB SRAM provides dedicated buffer space per port, enabling full-duplex operation at line rate. The device uses an internal 32-bit RISC core for management tasks including SNMP agent execution and register-based configuration via SPI or I²C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Ports | 8-port non-blocking Layer 2 switch fabric with independent ingress/egress bandwidth allocation |
| Data Rate Support | 10/100 Mbps per port, IEEE 802.3u compliant with auto-negotiation and flow control |
| Interface Types | Dual MII or single RMII for host CPU; 8 × MII for external PHYs; SPI/I²C for configuration |
| On-chip Memory | 128 KB embedded SRAM for packet buffering, allocated dynamically across ports |
| Operating Temp | –40°C to +85°C industrial grade, qualified for extended thermal cycling in DIN-rail enclosures |
| Supply Voltages | Core: 1.8 V ±5%; I/O: 3.3 V ±10%; separate analog supply for PHY interface |
Pinout & Package
128-pin LQFP (20 mm × 20 mm, 0.4 mm pitch), thermally enhanced with exposed thermal pad. Pin-compatible with ADM6996 series variants but requires unique boot configuration strapping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDIO / MDC | Management Data I/O and Clock | Serial interface for configuring external PHY registers per IEEE 802.3 clause 22 |
| RMII_CLK | Reference Clock Input | 50 MHz input for RMII host interface; must be clean, low-jitter source |
| RESET_N | Active-Low Reset Input | Asynchronous reset asserting internal state machines and clearing packet buffers |
| BOOT[1:0] | Boot Mode Selection | Strap pins determining SPI flash boot vs. I²C EEPROM configuration load at power-up |
| VDDA_PHY | Analog PHY Supply | Isolated 3.3 V supply for internal PHY interface circuitry; requires local filtering |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 8-port switch fabric | Eliminates need for external switch ASIC and reduces PCB layer count by consolidating data path logic |
| Embedded 128 KB SRAM | Enables concurrent full-duplex forwarding on all ports without external memory access latency |
| Dual MII or RMII host interface | Supports flexible host processor integration-MII for legacy SoCs, RMII for cost-sensitive microcontrollers |
| IEEE 802.1Q VLAN support | Allows logical network segmentation across physical ports without external routing hardware |
| Industrial temperature range | Validated for operation in uncontrolled environments such as factory floor cabinets and outdoor telecom shelters |
Applications
| Industrial Ethernet Switch | Building Automation Controller |
|---|---|
Use Scenario: DIN-rail mounted edge switch aggregating sensor nodes and PLCs in a manufacturing cell. IC Role / Device Role / Timing Role: Central switching controller managing traffic between 8 field devices and a supervisory HMI over Fast Ethernet. Use Value: Deterministic 10/100 Mbps forwarding with <10 µs port-to-port latency ensures real-time machine coordination. | Use Scenario: BACnet/IP gateway unit connecting HVAC actuators, lighting controllers, and fire alarm panels. IC Role / Device Role / Timing Role: Managed switch providing isolated VLANs for security-critical fire systems and non-critical lighting subsystems. Use Value: Hardware-accelerated 802.1Q tagging enforces policy-based traffic separation without CPU overhead. |
| Smart Grid RTU | Railway Signaling Node |
Use Scenario: Remote terminal unit collecting metering data from substations across geographically dispersed feeder lines. IC Role / Device Role / Timing Role: Ethernet switch controller interfacing multiple IEC 61850-compliant protection relays to a central SCADA server. Use Value: Integrated SRAM buffering absorbs bursty GOOSE message traffic during fault events without packet loss. | Use Scenario: ERTMS/ETCS Level 2 balise communication node installed in trackside cabinets along high-speed rail corridors. IC Role / Device Role / Timing Role: Deterministic Ethernet bridge linking train integrity monitors, axle counters, and radio block centers. Use Value: Industrial temp rating and EMC-hardened I/O ensure reliable operation in vibration-prone, EMI-heavy rail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Ethernet switch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6097-B1-NNC1I000 | 7-port switch with integrated 10/100 PHYs; no external PHY required; smaller 100-pin TQFP package | Reduces BOM count in compact designs but lacks configurable MII/RMII host interface flexibility | Select when PHY integration and footprint reduction outweigh host interface versatility needs |
| Microchip KSZ8864RMN | 4-port switch with integrated PHYs; supports only MII host interface; 64 KB internal RAM | Suitable for simpler gateways but insufficient port count and buffer depth for multi-node industrial aggregation | Choose for cost-sensitive 4-port applications where full 8-port capacity and large SRAM are unnecessary |
Compared with Marvell 88E6097 and Microchip KSZ8864RMN, the ADM6996LAAT1 uniquely balances 8-port scalability, external PHY flexibility, and industrial-grade thermal robustness-making it optimal for managed edge switching where configurability and environmental resilience are critical.
Availability
ADM6996LAAT1 is available at Aetrix Electronics and suitable for industrial Ethernet switches, building automation gateways, smart grid RTUs, and railway signaling nodes requiring stable component supply across extended product lifecycles.
Supply support for ADM6996LAAT1 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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial connectivity solutions, with global manufacturing and qualification standards.
The ADM6996 series targets industrial Ethernet infrastructure, delivering integrated switch controllers optimized for deterministic performance, thermal reliability, and long-term availability in harsh environments.
FAQ
Does ADM6996LAAT1 include integrated Ethernet PHYs?
No. ADM6996LAAT1 is a switch controller only and requires external 10/100 PHYs for each of its eight ports. It provides MII or RMII interfaces to connect to those PHYs, enabling design flexibility and signal integrity optimization.
What boot sources does ADM6996LAAT1 support?
ADM6996LAAT1 supports boot configuration from SPI flash memory or I²C EEPROM, selected via BOOT[1:0] strap pins at power-up. The device loads its initial register map and VLAN settings from the chosen serial memory device.
Can ADM6996LAAT1 operate in cut-through mode?
No. ADM6996LAAT1 uses store-and-forward packet processing exclusively. This ensures frame error checking before forwarding and guarantees zero corrupted packet propagation across the switch fabric.
Is the thermal pad on the 128-QFP package electrically connected?
Yes. The exposed thermal pad on the bottom of the ADM6996LAAT1's 128-pin LQFP package is internally connected to ground (VSS) and must be soldered to a PCB ground plane for both thermal dissipation and EMI suppression.
ADM6996LAAT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-BFQFP
- 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:
- -
ADM6996LAAT1 FAQ
1.How can I place an order for ADM6996LAAT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6996LAAT1 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 ADM6996LAAT1 reliable?
The price and inventory of ADM6996LAAT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6996LAAT1 is usually 5 days.
3.What payment methods are accepted for ADM6996LAAT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6996LAAT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6996LAAT1?
ADM6996LAAT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6996LAAT1 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 ADM6996LAAT1?
For technical support, including ADM6996LAAT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6996LAAT1 requirements.
6.How does Aetrix verify that ADM6996LAAT1 is sourced from the original manufacturer or authorized distributors?
All ADM6996LAAT1 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 ADM6996LAAT1 meets industry standards.
7.What is the process for return or replacement of ADM6996LAAT1?
All ADM6996LAAT1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6996LAAT1, 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 ADM6996LAAT1 part is unused and in its original packaging.
Return procedure for ADM6996LAAT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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