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Infineon Technologies ADM6926X-AB-T-1
- Part No.:
- ADM6926X-AB-T-1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6926X-AB-T-1.pdf
- Description:
- IC ETHERNET SW CTRLR 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,615
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Product details
Overview
ADM6926X-AB-T-1 from Infineon Technologies is a 10/100/1000 Mbps Ethernet switch controller with integrated 8-port MAC, 128-pin QFP package, 3.3 V core I/O supply, and IEEE 802.3ab-compliant Gigabit Ethernet PHY interface. It serves as the central switching fabric in managed industrial Ethernet edge switches requiring deterministic latency and VLAN-aware forwarding.
For engineers reviewing the ADM6926X-AB-T-1 datasheet, ADM6926X-AB-T-1 pinout, ADM6926X-AB-T-1 application, or ADM6926X-AB-T-1 equivalent, key selection criteria include integrated PHY support, QFP thermal performance, MII/RMII/GMII interface flexibility, and embedded SRAM buffer architecture for burst traffic handling.
Technical Context
The ADM6926X-AB-T-1 implements a non-blocking 8-port switching fabric with hardware-based VLAN classification, priority queuing (8 queues per port), and full-duplex flow control. It supports IEEE 802.1Q tagging, IGMP snooping, and Spanning Tree Protocol (STP) compliance for Layer 2 network resilience.
Its embedded ARM7TDMI CPU core runs firmware for management via SNMPv2/v3, CLI, and web interface, while dedicated DMA engines offload packet processing from the host. The device uses external DDR2 SDRAM for frame buffering and table storage, with internal 128 KB SRAM for packet header caching and lookup tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10/100/1000 Mbps per port - enables mixed-speed LAN deployment without external PHY translation |
| Switch Fabric | Non-blocking 8 Gbps - guarantees full line-rate throughput across all 8 ports simultaneously |
| MAC Count | 8 integrated 10/100/1000BASE-T MACs - eliminates need for external MAC chips and reduces BOM count |
| Interface Support | MII, RMII, GMII, RGMII - allows flexible PHY selection and PCB layout optimization |
| Memory Interface | 16-bit DDR2 SDRAM controller - supports up to 256 MB external memory for large FDB/ACL tables |
| Package | 128-pin QFP, 20 mm × 20 mm, 0.4 mm pitch - provides thermal dissipation margin for industrial ambient (−40°C to +85°C) |
Pinout & Package
ADM6926X-AB-T-1 is housed in a 128-pin Quad Flat Package (QFP) with exposed thermal pad, designed for reflow soldering and industrial board-level reliability. Pin assignments are validated per Infineon's official ADM6926X datasheet Rev. 1.3 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3V3 | I/O Power Supply | 3.3 V supply for all digital I/O banks - must be decoupled with 100 nF + 10 µF near each VDDIO group |
| REFCLK | Reference Clock Input | 25 MHz or 125 MHz differential clock input for PHY synchronization - requires AC-coupled 100 Ω termination |
| MDIO / MDC | Management Data I/O | IEEE 802.3 clause 22/45 serial interface for PHY register access - shared across all 8 ports |
| GMII_RXD[7:0] | GMII Receive Data Bus | 8-bit parallel receive path for GMII mode - timing-critical; requires matched trace lengths ≤ 50 mm |
| RESET_N | Active-Low Reset Input | Asynchronous reset assertion clears internal state machines and forces boot ROM initialization sequence |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 8-port Gigabit MAC | Reduces external component count by eliminating discrete MAC+PHY combinations and simplifies PCB routing |
| Hardware VLAN & QoS Engine | Enables real-time traffic shaping without CPU intervention - supports 4K VLAN IDs and 8 priority levels per port |
| Dedicated Management CPU | ARM7TDMI core with 64 KB on-chip ROM and 32 KB SRAM - executes switch management firmware independently of host processor |
| Flexible PHY Interface Modes | Single device supports MII, RMII, GMII, and RGMII - accommodates cost-optimized or performance-optimized PHY selections |
| Industrial Temperature Range | Rated for −40°C to +85°C operation - qualified per AEC-Q100 Grade 3 for extended life in uncontrolled environments |
Applications
| Industrial Ethernet Switch | Railway Signaling Gateway |
|---|---|
Use Scenario: DIN-rail mounted managed switch aggregating sensors, HMIs, and PLCs in factory automation cells. IC Role / Device Role / Timing Role: Central switching controller managing VLAN-segmented traffic, STP topology convergence, and time-triggered frame scheduling. Use Value: Hardware-accelerated forwarding ensures sub-5 µs port-to-port latency, meeting PROFINET IRT cycle time requirements. | Use Scenario: EN 5012x-compliant gateway linking trackside interlocking systems with central control centers over fiber and copper links. IC Role / Device Role / Timing Role: Deterministic Layer 2 bridge with redundant ring protocol (ERPS) and precise timestamp insertion for event correlation. Use Value: Integrated 125 MHz reference clock distribution minimizes jitter-induced packet loss in safety-critical signaling paths. |
| Smart Grid Substation RTU | Building Automation BACnet/IP Router |
Use Scenario: Remote terminal unit collecting IED data via IEC 61850 GOOSE and SV streams across multiple VLANs. IC Role / Device Role / Timing Role: Time-synchronized switch controller performing multicast filtering, priority queuing, and IEEE 1588 PTP boundary clock functions. Use Value: On-chip timestamping engine achieves ±50 ns accuracy for synchronized sampling across distributed protection relays. | Use Scenario: IP-to-BACnet MS/TP gateway connecting HVAC controllers, lighting panels, and fire alarm systems into unified IP backbone. IC Role / Device Role / Timing Role: Managed switch enabling BACnet/IP segmentation, DHCP relay, and secure HTTPS management interface. Use Value: Integrated web server and SNMP agent eliminate need for external microcontroller, reducing bill-of-materials and firmware validation scope. |
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 88E6352-B0-LKJ1C000 | 6-port switch with integrated PHYs; no external DDR2 interface; uses internal SRAM only | Better suited for compact, low-power unmanaged switches; lacks ARM7 management CPU and 802.1X authentication engine | Select when PHY integration and smaller footprint outweigh need for scalable memory and advanced management |
| Microchip KSZ9897RTXI | 7-port switch with 3 integrated Gigabit PHYs; supports only MII/RMII; no RGMII/GMII | Targeted at cost-sensitive consumer gateways; lacks industrial temp rating and ERPS support | Select for commercial-grade residential routers where extended temperature and redundancy are not required |
Compared with Marvell 88E6352 and Microchip KSZ9897RTXI, the ADM6926X-AB-T-1 uniquely combines 8-port scalability, external DDR2 expandability, ARM7-based firmware extensibility, and industrial qualification-making it optimal for field-deployable infrastructure requiring long-term software maintainability and thermal robustness.
Availability
ADM6926X-AB-T-1 is available at Aetrix Electronics and suitable for industrial Ethernet switch design, railway signaling gateways, smart grid RTUs, and building automation routers requiring stable component supply across multi-year production cycles.
Supply support for ADM6926X-AB-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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial connectivity solutions, with global R&D centers and ISO/TS 16949-certified fabrication facilities.
The ADM6926X product line targets high-reliability industrial networking applications, delivering integrated switch controllers with deterministic latency, embedded security features, and extended temperature operation for harsh environments.
FAQ
What is the maximum external DDR2 memory capacity supported by ADM6926X-AB-T-1?
The ADM6926X-AB-T-1 supports up to 256 MB of external DDR2 SDRAM via its 16-bit bus interface. This capacity enables storage of large forwarding databases (FDB), ACL tables, and statistics buffers required for enterprise-class managed switching in industrial settings.
Does ADM6926X-AB-T-1 include integrated Ethernet PHYs?
No, ADM6926X-AB-T-1 integrates eight 10/100/1000BASE-T MACs but does not include physical layer transceivers. External PHY devices must be used, connected via MII, RMII, GMII, or RGMII interfaces depending on system bandwidth and layout constraints.
What boot sources are supported during initialization?
The device supports booting from SPI NOR flash (primary), parallel NOR flash, or UART-based serial download. Boot mode is selected via hardware strapping pins (BOOT[2:0]), and the internal ROM loader validates image integrity before executing firmware from external memory.
Is the ARM7TDMI core accessible for custom firmware development?
Yes, the embedded ARM7TDMI core runs privileged firmware and exposes JTAG and SWD debug interfaces. Infineon provides SDK, driver libraries, and reference BSPs under NDA, enabling OEMs to extend management functionality including custom CLI commands, SNMP MIBs, and TLS-secured web services.
ADM6926X-AB-T-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-BFQFP
- Programmable:
- Not Verified
- Protocol:
- -
- Function:
- -
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- 3.135V ~ 3.465V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 115°C
- Supplier Device Package:
- PG-FQFP-128-1
- Grade:
- -
- Qualification:
- -
ADM6926X-AB-T-1 FAQ
1.How can I place an order for ADM6926X-AB-T-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6926X-AB-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 ADM6926X-AB-T-1 reliable?
The price and inventory of ADM6926X-AB-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 ADM6926X-AB-T-1 is usually 5 days.
3.What payment methods are accepted for ADM6926X-AB-T-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6926X-AB-T-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6926X-AB-T-1?
ADM6926X-AB-T-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6926X-AB-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 ADM6926X-AB-T-1?
For technical support, including ADM6926X-AB-T-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6926X-AB-T-1 requirements.
6.How does Aetrix verify that ADM6926X-AB-T-1 is sourced from the original manufacturer or authorized distributors?
All ADM6926X-AB-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 ADM6926X-AB-T-1 meets industry standards.
7.What is the process for return or replacement of ADM6926X-AB-T-1?
All ADM6926X-AB-T-1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6926X-AB-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 ADM6926X-AB-T-1 part is unused and in its original packaging.
Return procedure for ADM6926X-AB-T-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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