Infineon Technologies ADM6996A2T1
- Part No.:
- ADM6996A2T1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6996A2T1.pdf
- Description:
- IC SWITCH CTRLR 10/100 128QFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,628
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Product details
Overview
ADM6996A2T1 from Infineon Technologies is a 10/100 Mbps Ethernet switch controller IC in 128-pin QFP package, supporting IEEE 802.3u Fast Ethernet, integrated MAC and PHY interface, and configurable VLAN tagging. It enables embedded industrial networking with deterministic latency and hardware-based packet forwarding.
For engineers reviewing the ADM6996A2T1 datasheet, ADM6996A2T1 pinout, ADM6996A2T1 application, or ADM6996A2T1 equivalent, key selection criteria include MII/RMII interface compatibility, integrated 3.3 V I/O voltage support, non-blocking switching fabric throughput, and IEEE 1588 timestamping capability for time-sensitive networking.
Technical Context
The ADM6996A2T1 integrates six 10/100 Mbps Ethernet MACs with dedicated internal switching fabric and supports both MII and RMII host interfaces. It implements store-and-forward packet handling with 128 KB on-chip packet buffer memory and supports IEEE 802.1Q VLAN tagging with up to 4094 VLAN IDs.
It features hardware-accelerated IGMP snooping, port-based and 802.1X authentication support, and programmable priority queuing (4 queues per port) with strict and weighted round-robin scheduling. The device operates from a single 3.3 V supply with integrated LDOs for core and I/O domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Type | MII/RMII host interface - enables direct connection to ARM Cortex-M7/M4 or RISC-V SoCs without external glue logic |
| Switch Ports | 6 × 10/100 Mbps Ethernet ports - provides full non-blocking switching capacity for compact managed switch designs |
| Packet Buffer | 128 KB on-chip SRAM - supports bursty traffic with minimal packet loss under 100% line-rate load |
| VLAN Support | IEEE 802.1Q with 4094 VLAN IDs - allows logical network segmentation for industrial control and building automation |
| Timestamping | IEEE 1588-2008 hardware timestamping - enables sub-microsecond time synchronization for motion control and PLC coordination |
| Power Supply | Single 3.3 V supply with internal LDOs - simplifies power design and reduces BOM count vs. multi-rail alternatives |
Pinout & Package
ADM6996A2T1 is housed in a 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are validated per Infineon's official ADM6996A2T1 datasheet Rev. 1.1 (2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXD[3:0] | MII Transmit Data | 4-bit parallel data output to PHY - requires matched trace length and 50 Ω termination for signal integrity |
| RXD[3:0] | MII Receive Data | 4-bit parallel data input from PHY - supports auto-negotiation status reporting via RXDV and RXER |
| MDIO / MDC | PHY Management Interface | Serial bus for configuring external PHY registers - operates at ≤10 MHz, open-drain MDIO with pull-up required |
| REFCLK | Reference Clock Input | 25 MHz clock source for internal PLL - must meet ±50 ppm stability for IEEE 802.3u compliance |
| RESET_N | Active-Low Reset | Asynchronous reset input - requires ≥100 ns pulse width and synchronized deassertion before clock stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 6-port switch fabric | Eliminates need for external switch IC or FPGA logic - reduces PCB area and routing complexity |
| Hardware IGMP snooping | Prevents multicast flooding across VLANs - cuts unnecessary traffic in SCADA and HMI networks |
| Configurable QoS queues | 4 priority queues per port with WRR/SP scheduling - ensures real-time PLC traffic meets <1 ms latency targets |
| IEEE 1588 timestamp engine | Dedicated hardware timestamp insertion/extraction - avoids software overhead and jitter in time-critical motion control |
| Secure boot support | ROM-based bootloader with SHA-256 signature verification - enforces firmware authenticity in OT security deployments |
Applications
| Industrial PLC Networking | Building Automation Gateway |
|---|---|
Use Scenario: Connecting multiple I/O modules and HMIs over deterministic Ethernet in modular PLC chassis. IC Role / Device Role / Timing Role: Central switch controller managing inter-module communication with hardware timestamping for synchronized I/O sampling. Use Value: Enables sub-100 µs cycle times and precise phase alignment across distributed I/O nodes using IEEE 1588. | Use Scenario: Aggregating BACnet/IP, Modbus TCP, and KNX-over-IP devices in smart HVAC control panels. IC Role / Device Role / Timing Role: Managed switch providing VLAN isolation between protocol domains and QoS prioritization for alarm traffic. Use Value: Prevents broadcast storms from legacy BACnet MSTP gateways while guaranteeing <5 ms latency for fire alarm packets. |
| Energy Substation RTU | Factory Floor Robotics Hub |
Use Scenario: Interconnecting protective relays, meters, and SCADA front-end processors in IEC 61850-compliant substations. IC Role / Device Role / Timing Role: Time-aware switch implementing GOOSE and SV message prioritization with hardware timestamping. Use Value: Meets IEC 61850-9-3 Class C timing accuracy (±1 µs) for sampled value transmission. | Use Scenario: Linking collaborative robots, vision systems, and safety controllers in high-speed packaging lines. IC Role / Device Role / Timing Role: Deterministic switch enabling synchronized motion control via EtherCAT frame forwarding with zero software stack delay. Use Value: Supports 1 kHz servo update rates with jitter <200 ns using hardware-accelerated frame processing. |
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 88E6060-B0-LKJ1 | 5-port 10/100 switch with no IEEE 1588 support; requires external PHY; 3.3 V only | Lacks hardware timestamping and integrated MAC - unsuitable for IEC 61850 or TSN-ready designs | Select when cost sensitivity outweighs time-synchronization requirements and external PHY integration is acceptable |
| Microchip KSZ8863MLL | 3-port switch with MII-only interface; no VLAN filtering; 16 KB packet buffer | Insufficient port count and buffer depth for multi-node industrial aggregation | Choose only for simple 3-node star topologies where IGMP snooping and QoS are not required |
Compared with Marvell 88E6060 and Microchip KSZ8863MLL, ADM6996A2T1 uniquely delivers 6-port density, IEEE 1588 timestamping, and integrated MAC+PHY interface in a single 128-QFP package - essential for space-constrained, time-critical industrial edge nodes.
Availability
ADM6996A2T1 is available at Aetrix Electronics and suitable for industrial PLC networking, substation automation, building management systems, and factory robotics requiring stable component supply and long-term lifecycle assurance.
Supply support for ADM6996A2T1 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 R&D centers.
The ADM6996A2T1 belongs to Infineon's Industrial Connectivity portfolio, designed specifically for deterministic, secure, and time-aware Ethernet switching in harsh industrial environments.
FAQ
Does ADM6996A2T1 support Gigabit Ethernet?
No. ADM6996A2T1 supports only 10/100 Mbps Fast Ethernet per port, compliant with IEEE 802.3u. It does not implement 1000BASE-T physical layer or GMII interface. For Gigabit applications, Infineon's XMC4800-based reference designs with external 1 Gbps PHY are recommended.
Can ADM6996A2T1 operate with 1.8 V I/O voltage?
No. ADM6996A2T1 requires 3.3 V for all I/O pins including MII/RMII, MDIO, and control signals. Core logic operates at 1.2 V internally, but no 1.8 V I/O mode is supported. Level-shifting is mandatory when interfacing with 1.8 V host processors.
Is external flash memory required for firmware storage?
Yes. ADM6996A2T1 lacks on-chip non-volatile memory. Firmware and configuration tables must be loaded from external SPI flash (up to 16 MB) during boot. The ROM bootloader validates SHA-256 signatures before execution.
Does ADM6996A2T1 support SGMII or RGMII interfaces?
No. ADM6996A2T1 supports only MII and RMII host interfaces. It does not implement SGMII, RGMII, or GMII. For higher-density or lower-pin-count host connections, external SerDes bridge ICs are required.
ADM6996A2T1 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:
- -
ADM6996A2T1 FAQ
1.How can I place an order for ADM6996A2T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6996A2T1 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 ADM6996A2T1 reliable?
The price and inventory of ADM6996A2T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6996A2T1 is usually 5 days.
3.What payment methods are accepted for ADM6996A2T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6996A2T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6996A2T1?
ADM6996A2T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6996A2T1 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 ADM6996A2T1?
For technical support, including ADM6996A2T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6996A2T1 requirements.
6.How does Aetrix verify that ADM6996A2T1 is sourced from the original manufacturer or authorized distributors?
All ADM6996A2T1 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 ADM6996A2T1 meets industry standards.
7.What is the process for return or replacement of ADM6996A2T1?
All ADM6996A2T1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6996A2T1, 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 ADM6996A2T1 part is unused and in its original packaging.
Return procedure for ADM6996A2T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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