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Infineon Technologies ADM6999UX-A2-T-1
- Part No.:
- ADM6999UX-A2-T-1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6999UX-A2-T-1.pdf
- Description:
- IC ETHERNET SW CTRLR 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,096
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Product details
Overview
ADM6999UX-A2-T-1 from Infineon Technologies is a 9-port 10/100 Mb/s single-chip Ethernet switch controller with integrated 100Base-X and 10Base-T PHYs, on-chip memory management, VLAN tagging, and serial LED interface - designed for embedded networking in residential gateways and SOHO routers.
For engineers reviewing the ADM6999UX-A2-T-1 datasheet, ADM6999UX-A2-T-1 pinout, ADM6999UX-A2-T-1 application, or ADM6999UX-A2-T-1 equivalent, key selection considerations include its 128-pin LQFP package, integrated auto-MDIX per port, hardware-based address learning with 1K MAC table depth, and support for priority-based QoS via IEEE 802.1p mapping.
Technical Context
The ADM6999UX-A2-T-1 integrates nine independent 10/100 Mb/s Ethernet PHYs with full-duplex flow control, adaptive equalization for 100Base-X, and Manchester encoding/decoding for 10Base-T. Its switch fabric supports store-and-forward operation with configurable inter-packet gap and broadcast storm filtering.
It implements a serial management interface (SMI) compliant with IEEE 802.3u, supports EEPROM-based configuration (2-wire I²C-compatible), and features dual LED scan modes (serial and parallel) for real-time port status indication without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 9 independent 10/100 Mb/s Ethernet ports with integrated PHYs |
| Data Rate Support | 10BASE-T (10 Mb/s) and 100BASE-TX/FX (100 Mb/s) per port |
| MAC Address Table | 1,024-entry hardware address learning table with aging timer |
| VLAN Support | Port-based VLAN and IEEE 802.1Q tag/untag with up to 16 VLAN groups |
| QoS Priority | IEEE 802.1p priority mapping across all 9 ports with 4-level queue depth |
| LED Interface | Dual-mode: serial (1-wire) and scan (parallel) LED control supporting 32 LEDs |
| Package | 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) |
Pinout & Package
ADM6999UX-A2-T-1 is housed in a 128-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, optimized for thermal dissipation in compact router PCB layouts and compatible with standard reflow soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXD[0:3] | Expansion bus data output | 4-bit parallel data path for host microcontroller communication |
| RXD[0:3] | Expansion bus data input | 4-bit parallel data path for host-to-switch command/response |
| SMI_CLK / SMI_DATA | Serial Management Interface | IEEE 802.3u-compliant 2-wire interface for PHY register access and configuration |
| LED_SCLK / LED_SDATA | Serial LED interface | Drives up to 32 LEDs in daisy-chain mode with automatic refresh |
| EEPROM_SCL / EEPROM_SDA | Configuration EEPROM interface | I²C-compatible 2-wire bus for boot-time firmware and MAC table loading |
Key Features
| Feature | Design Value |
|---|---|
| Auto MDIX per port | Eliminates need for crossover cables; automatically detects and corrects polarity on each 10/100 port |
| Hardware address learning | 1K-entry MAC table managed entirely in silicon - zero host CPU overhead for forwarding decisions |
| Broadcast storm filter | Configurable threshold-based suppression of excessive broadcast/multicast traffic per port |
| Priority-based QoS | Per-port 4-level priority queue with strict and weighted round-robin scheduling options |
| LED scan interface | Parallel 32-bit LED driver enabling real-time port link/activity/status without host polling |
Applications
| Residential Gateway | SOHO Router |
|---|---|
|
Use Scenario: Integrated broadband gateway combining DSL/cable modem, firewall, and Wi-Fi AP in one chassis. IC Role / Device Role / Timing Role: Central switching fabric managing LAN-side Ethernet traffic between wired clients, wireless bridge, and WAN uplink. Use Value: Reduces BOM count by consolidating 9 PHYs + switch logic into single IC, lowering PCB area and power vs. multi-chip solutions. |
Use Scenario: Compact 4–8 port wired router for small offices with VLAN segmentation and QoS for VoIP/video. IC Role / Device Role / Timing Role: Layer 2 switch engine performing MAC learning, frame forwarding, and priority queuing at wire speed. Use Value: Enables deterministic low-latency forwarding for time-sensitive traffic using hardware-accelerated 802.1p classification. |
| Network Attached Storage (NAS) | Industrial Ethernet Bridge |
|
Use Scenario: Multi-bay NAS enclosure requiring high-throughput internal switching between drives and client ports. IC Role / Device Role / Timing Role: Internal switch controller handling concurrent SMB/NFS traffic across multiple Gigabit-capable 100BASE-TX links. Use Value: Provides non-blocking 9×100 Mb/s internal bandwidth with hardware flow control to prevent buffer overflow during burst transfers. |
Use Scenario: DIN-rail mounted industrial bridge connecting legacy fieldbus devices to Ethernet backbone. IC Role / Device Role / Timing Role: Deterministic Ethernet switch with robust ESD tolerance and extended temperature support (via external design). Use Value: Delivers stable port-to-port latency (< 3.2 µs store-and-forward delay) critical for time-triggered industrial protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 9-port Ethernet switch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6093 | 8-port + 1 CPU port; no integrated PHYs - requires external PHYs for all ports | Higher flexibility in PHY selection but increases BOM and layout complexity | Choose when custom PHY selection (e.g., PoE-capable or fiber variants) is required |
| Realtek RTL8309M | 9-port unmanaged switch; no serial management interface or VLAN/QoS configuration capability | Limited to plug-and-play use cases without host control or policy enforcement | Choose only for cost-sensitive, feature-light deployments where configuration is unnecessary |
Compared with Marvell 88E6093 and Realtek RTL8309M, the ADM6999UX-A2-T-1 uniquely delivers full PHY integration, hardware-managed VLANs, and dual-mode LED control in a single 128-pin LQFP - reducing system-level component count and software stack complexity for managed SOHO routing.
Availability
ADM6999UX-A2-T-1 is available at Aetrix Electronics and suitable for residential gateways, SOHO routers, and industrial Ethernet bridges requiring stable component supply, long-lifecycle support, and mature Ethernet switch functionality.
Supply support for ADM6999UX-A2-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 chips, with global R&D and manufacturing infrastructure.
The ADM6999U/UX product line was developed by Infineon's Communications division (originally ADMtek) to deliver highly integrated, cost-optimized Ethernet switching solutions for mass-market broadband CPE equipment.
FAQ
Does ADM6999UX-A2-T-1 support Gigabit Ethernet?
No. The ADM6999UX-A2-T-1 supports only 10/100 Mb/s per port (IEEE 802.3u). It does not implement 1000BASE-T or any Gigabit PHY functionality. Its maximum per-port throughput is 100 Mb/s full-duplex, with aggregate switching capacity limited by its 4-bit expansion bus and internal fabric architecture.
Is an external EEPROM required for operation?
Yes. The ADM6999UX-A2-T-1 requires an external 2-wire I²C-compatible EEPROM (typically 2 Kbit) to store factory MAC addresses, port configuration, VLAN settings, and LED behavior. Boot initialization halts if EEPROM is absent or fails CRC validation.
What is the function of the RTX pin, and why is it specified as 1K 1% in Revision 1.42?
The RTX pin sets the reference resistor for the internal 100BASE-TX transmit driver bias current. In A2 revision (Rev. 1.42), Infineon changed the recommended value from prior versions to 1K ±1% to improve transmit waveform fidelity and meet stricter IEEE 802.3u jitter and amplitude specifications across voltage/temperature ranges.
Can ADM6999UX-A2-T-1 operate without a host microcontroller?
Yes - in standalone mode. With valid EEPROM configuration, it performs autonomous switching, auto-MDIX, link monitoring, and LED control without host interaction. A host is only required for dynamic reconfiguration (e.g., VLAN changes, QoS updates) via the SMI or expansion bus.
ADM6999UX-A2-T-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-BFQFP
- Programmable:
- Not Verified
- Protocol:
- -
- Function:
- -
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- 2.8V ~ 3.465V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 115°C
- Supplier Device Package:
- PG-BFQFP-128
- Grade:
- -
- Qualification:
- -
ADM6999UX-A2-T-1 FAQ
1.How can I place an order for ADM6999UX-A2-T-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6999UX-A2-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 ADM6999UX-A2-T-1 reliable?
The price and inventory of ADM6999UX-A2-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 ADM6999UX-A2-T-1 is usually 5 days.
3.What payment methods are accepted for ADM6999UX-A2-T-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6999UX-A2-T-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6999UX-A2-T-1?
ADM6999UX-A2-T-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6999UX-A2-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 ADM6999UX-A2-T-1?
For technical support, including ADM6999UX-A2-T-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6999UX-A2-T-1 requirements.
6.How does Aetrix verify that ADM6999UX-A2-T-1 is sourced from the original manufacturer or authorized distributors?
All ADM6999UX-A2-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 ADM6999UX-A2-T-1 meets industry standards.
7.What is the process for return or replacement of ADM6999UX-A2-T-1?
All ADM6999UX-A2-T-1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6999UX-A2-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 ADM6999UX-A2-T-1 part is unused and in its original packaging.
Return procedure for ADM6999UX-A2-T-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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