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Infineon Technologies ADM6996LX-AA-R-1
- Part No.:
- ADM6996LX-AA-R-1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6996LX-AA-R-1.pdf
- Description:
- IC ETHERNET SW CTRLR 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,183
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Product details
Overview
ADM6996LX-AA-R-1 from Infineon Technologies (formerly ADMtek) is a single-chip 6-port 10/100 Mb/s Ethernet switch controller integrating five 10/100 PHYs, one MII interface, embedded memory, VLAN tagging, priority-based QoS, and auto-MDIX. It supports full/half-duplex operation, IEEE 802.3x flow control, and hardware-based address learning/aging. Used in managed SOHO switches and embedded network appliances requiring compact Layer 2 switching.
For engineers reviewing the ADM6996LX-AA-R-1 datasheet, ADM6996LX-AA-R-1 pinout, ADM6996LX-AA-R-1 application, or ADM6996LX-AA-R-1 equivalent, key selection criteria include integrated PHY count, MII port flexibility, VLAN and QoS register configurability, EEPROM-based initialization, and 48-pin LQFP package compatibility with legacy ADMtek switch designs.
Technical Context
The ADM6996LX-AA-R-1 implements a fully integrated Layer 2 switch fabric with five internal 10/100BASE-TX PHYs and one external MII port for connection to a sixth PHY or MAC. Its switch engine performs automatic MAC address learning (1K entry table), aging (15–300 sec configurable), and store-and-forward packet forwarding with per-port bandwidth control registers (0x31h–0x33h).
It features dual PHY interface modes: twisted-pair (TP) for 10/100BASE-TX and fiber (FX) support via 100BASE-X receiver blocks with adaptive equalization, NRZI/NRZ decoding, symbol alignment, and far-end fault detection. Clock synthesis is internal, eliminating need for external crystal on most configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 6 ports: 5 integrated 10/100 PHYs + 1 MII interface for external PHY/MAC |
| Data Rate | 10 or 100 Mb/s per port, full/half-duplex selectable per port |
| MAC Address Table | 1,024 entries with configurable aging time (15–300 seconds) |
| VLAN Support | Port-based VLAN and IEEE 802.1Q tag/untag with 16 VLAN groups |
| QoS Priority | 8-level priority mapping via TOS/IP and VLAN priority registers (0x0fh, 0x0eh) |
| Package | 48-pin LQFP, 7 mm × 7 mm, 0.5 mm pitch, RoHS-compliant |
| Supply Voltage | 3.3 V ± 0.3 V core I/O; internal regulators supply 2.5 V to PHY analog blocks |
| EEPROM Interface | 1-wire serial EEPROM (93C46/93C56 compatible) for boot configuration storage |
Pinout & Package
ADM6996LX-AA-R-1 is housed in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across five functional groups: twisted-pair PHY I/O (TX+/−, RX+/− per port), MII signals (TXD[3:0], RXD[3:0], TX_EN, RX_DV, CRS, COL, MDC, MDIO), LED drivers (LINK/ACT, SPEED, FULLD), EEPROM interface (EECLK, EEDATA), and power/ground (VDD33, VSS, AVDD25, AGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXD0–TXD3 | MII Transmit Data Bus | 4-bit parallel data output to external MAC/PHY; synchronous to TX_CLK |
| RXD0–RXD3 | MII Receive Data Bus | 4-bit parallel data input from external MAC/PHY; valid on RX_DV assertion |
| TX_EN | MII Transmit Enable | Indicates valid transmit data on TXD bus; driven by switch during frame transmission |
| RX_DV | MII Receive Data Valid | Asserted by external device to signal valid data on RXD bus |
| MDC / MDIO | PHY Management Interface | IEEE 802.3 clause 22 serial interface for configuring external PHY registers |
| EECLK / EEDATA | EEPROM Clock & Data | 1-wire serial interface for loading boot configuration (PHY defaults, VLAN, QoS) |
| LED0–LED5 | Port Status Indicators | Open-drain outputs driving LEDs for link/activity/speed/full-duplex per port |
| AVDD25 / AGND | Analog PHY Power | Dedicated 2.5 V analog supply for internal PHY transceivers; requires local decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PHY Count | Five fully compliant 10/100BASE-TX PHYs reduce BOM count and board space vs. discrete PHY + switch solutions |
| Auto-MDIX | Automatic crossover detection and correction on all five internal PHY ports eliminates manual cable type dependency |
| Hardware Address Learning | 1K-entry MAC table managed entirely in silicon-no host CPU intervention required for basic forwarding |
| VLAN & QoS Registers | Dedicated EEPROM-mapped registers (0x0eh–0x12h) enable persistent, non-volatile VLAN group assignment and priority mapping |
| Broadcast Storm Filter | Configurable threshold-based suppression of excessive broadcast/multicast traffic per port to prevent switch saturation |
| Jabber Protection | Hardware-enforced 1518-byte frame length limit prevents malformed frames from disrupting switch fabric or downstream devices |
Applications
| SOHO Managed Switch | Industrial Ethernet Gateway |
|---|---|
Use Scenario: 6-port desktop switch with web-based management and VLAN segmentation for small office networks. IC Role / Device Role / Timing Role: Standalone switch controller handling MAC learning, frame forwarding, VLAN tagging, and LED status reporting without host CPU. Use Value: Reduces system cost by integrating five PHYs and switch logic into one 48-pin LQFP, enabling compact 2-layer PCB designs. | Use Scenario: Protocol-conversion gateway connecting Modbus RTU field devices to TCP/IP SCADA systems. IC Role / Device Role / Timing Role: Layer 2 bridge providing deterministic latency, port isolation via VLAN, and robust link monitoring for industrial uptime. Use Value: Auto-MDIX and jabber protection ensure reliable operation in electrically noisy environments with mixed cable types and legacy equipment. |
| Network-Attached Storage (NAS) Controller | Smart Building Controller Hub |
Use Scenario: Embedded Ethernet interface in ARM-based NAS SoM modules requiring local switching between LAN, USB-to-Ethernet, and SATA controller interfaces. IC Role / Device Role / Timing Role: MII-connected switch controller enabling simultaneous LAN uplink and internal device interconnect with QoS prioritization for streaming traffic. Use Value: Bandwidth control registers (0x31h–0x33h) allow guaranteed minimum throughput for video streaming while limiting background backup traffic. | Use Scenario: Central HVAC/lighting controller aggregating sensor nodes over Ethernet with logical segmentation by zone. IC Role / Device Role / Timing Role: Port-based VLAN hub isolating HVAC, lighting, and security subnets at hardware level for security and traffic management. Use Value: EEPROM-stored VLAN configuration survives power cycles, ensuring consistent network topology without firmware reinitialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 6-port 10/100 Ethernet switch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6060-B0-LF | 5-port switch with integrated PHYs; no MII port; uses SPI EEPROM interface instead of 1-wire | Lacks external MII flexibility; suited for fixed 5-port designs only | Select when MII expansion is unnecessary and SPI-based configuration is preferred |
| Realtek RTL8305NB-GR | 5-port 10/100 switch with MII; smaller 48-pin QFN; no 100BASE-X FX mode support | Missing adaptive equalizer and far-end fault detection for fiber links | Select for cost-sensitive consumer applications where FX capability is not required |
Compared with Marvell 88E6060-B0-LF and Realtek RTL8305NB-GR, ADM6996LX-AA-R-1 uniquely combines five integrated PHYs with a dedicated MII port and full 100BASE-X receiver functionality-including adaptive equalization and far-end fault-making it suitable for hybrid copper/fiber edge switching where external PHY extension and fiber diagnostics matter.
Availability
ADM6996LX-AA-R-1 is available at Aetrix Electronics and suitable for SOHO networking equipment, industrial gateways, and embedded storage controllers requiring stable component supply, long-lifecycle availability, and legacy ADMtek design continuity.
Supply support for ADM6996LX-AA-R-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 acquired ADMtek in 2003 and integrated its Ethernet switch portfolio into its industrial and connectivity product lines. ADMtek was a Taiwan-based fabless semiconductor company specializing in highly integrated networking ICs.
The ADM6996L belongs to Infineon's legacy Ethernet switch controller family, designed specifically for cost-sensitive, space-constrained embedded systems needing self-contained Layer 2 switching with minimal external components.
FAQ
Does ADM6996LX-AA-R-1 support Gigabit Ethernet?
No. ADM6996LX-AA-R-1 is strictly a 10/100 Mb/s device. It contains five 10/100BASE-TX PHYs and one MII interface supporting only 10 or 100 Mbps data rates. No GMII, RGMII, or SGMII interfaces are present, and the internal switch fabric does not process packets above 100 Mbps.
What EEPROM part numbers are compatible with ADM6996LX-AA-R-1?
The device supports standard 1-wire serial EEPROMs including the Microchip 93LC46B, 93LC56B, and STMicroelectronics M95040. These provide 128 × 16-bit or 256 × 16-bit capacity and match the timing requirements specified in Section 5.3.2 of the datasheet for EEPROM interface clock (EECLK) and data (EEDATA) signaling.
Is an external crystal required for ADM6996LX-AA-R-1 operation?
No external crystal is required for basic operation. The chip includes an internal PLL-based clock synthesizer that generates all necessary clocks from a single 25 MHz reference input applied to the XTAL_IN pin. An external crystal may be used optionally if precise frequency stability beyond internal PLL tolerance is needed.
Can ADM6996LX-AA-R-1 operate with only three of its five internal PHYs enabled?
Yes. PHY enable/disable is controlled per port via EEPROM configuration registers (offset 0x01h–0x05h). Unused PHYs can be powered down to reduce active current consumption. The switch fabric automatically disables forwarding paths to disabled ports, maintaining correct MAC table behavior and avoiding spurious traffic injection.
ADM6996LX-AA-R-1 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:
- -
ADM6996LX-AA-R-1 FAQ
1.How can I place an order for ADM6996LX-AA-R-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6996LX-AA-R-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 ADM6996LX-AA-R-1 reliable?
The price and inventory of ADM6996LX-AA-R-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6996LX-AA-R-1 is usually 5 days.
3.What payment methods are accepted for ADM6996LX-AA-R-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6996LX-AA-R-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6996LX-AA-R-1?
ADM6996LX-AA-R-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6996LX-AA-R-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 ADM6996LX-AA-R-1?
For technical support, including ADM6996LX-AA-R-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6996LX-AA-R-1 requirements.
6.How does Aetrix verify that ADM6996LX-AA-R-1 is sourced from the original manufacturer or authorized distributors?
All ADM6996LX-AA-R-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 ADM6996LX-AA-R-1 meets industry standards.
7.What is the process for return or replacement of ADM6996LX-AA-R-1?
All ADM6996LX-AA-R-1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6996LX-AA-R-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 ADM6996LX-AA-R-1 part is unused and in its original packaging.
Return procedure for ADM6996LX-AA-R-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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