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Infineon Technologies ADM6999UA2T1
- Part No.:
- ADM6999UA2T1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 128-BFQFP
- Datasheet:
-
ADM6999UA2T1.pdf
- Description:
- IC SWITCH CTRLR 10/100 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,743
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Product details
Overview
ADM6999UA2T1 from Infineon Technologies is a 10/100 Ethernet switch controller IC with integrated MAC, PHY interface support for MII/RMII, and 128-pin LQFP package. It supports IEEE 802.3u Fast Ethernet, delivers up to 200 Mbps full-duplex switching throughput, and includes embedded SRAM for packet buffering. Used in industrial Ethernet edge nodes requiring deterministic low-latency switching.
For engineers reviewing the ADM6999UA2T1 datasheet, ADM6999UA2T1 pinout, ADM6999UA2T1 application, or ADM6999UA2T1 equivalent, key selection criteria include MII/RMII interface compatibility, integrated MAC functionality, 128LQFP thermal performance, IEEE 802.3u compliance, and embedded buffer memory size.
Technical Context
The ADM6999UA2T1 integrates a 3-port 10/100 Ethernet switch fabric with configurable VLAN tagging (IEEE 802.1Q), priority-based QoS (4-level WRR), and hardware-based IGMP snooping. It implements a dedicated ARM7TDMI core for management plane operations and supports SNMPv1/v2c via embedded agent firmware.
It features a 16-bit host interface (ISA/PCI-like) for microcontroller connectivity, supports external EEPROM boot configuration, and provides register-accessible statistics counters for Rx/Tx octets, errors, and collisions per port - all accessible without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Ports | 3 × 10/100BASE-TX ports with full-duplex operation and auto-negotiation |
| MAC Interface | Integrated MAC supporting MII and RMII for external PHY connection |
| Host Interface | 16-bit parallel bus with programmable wait states and interrupt signaling |
| Packet Buffer | 128 KB embedded SRAM for store-and-forward switching with per-port allocation |
| VLAN Support | IEEE 802.1Q compliant with 4K VLAN ID table and port-based filtering |
| QoS Mechanism | Weighted Round Robin (WRR) scheduler with 4 priority queues per port |
Pinout & Package
ADM6999UA2T1 is housed in a 128-lead LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDIO / MDC | Management Data I/O and Clock | Serial interface for PHY register access and configuration via IEEE 802.3 clause 22 |
| TXD[3:0] / RXD[3:0] | MII Transmit/Receive Data Bus | 4-bit nibble-wide data path for MII mode; multiplexed for RMII clock/data alignment |
| INT# | Interrupt Output | Active-low open-drain signal indicating link change, error, or statistics overflow |
| RESET# | Asynchronous Reset Input | Hardware reset assertion clears internal registers and reinitializes switch fabric and MACs |
| CLKIN | Reference Clock Input | 25 MHz crystal or oscillator input for PHY timing and internal PLL synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Switch Fabric + MAC | Eliminates need for external switch IC and separate MAC logic in cost-sensitive 3-port designs |
| Hardware IGMP Snooping | Reduces multicast flooding by learning group membership at line rate without CPU load |
| Embedded ARM7TDMI Core | Enables autonomous SNMP agent execution and web-server offload without host processor involvement |
| Per-Port Statistics Counters | Provides real-time visibility into traffic volume, errors, and collisions without software polling overhead |
Applications
| Industrial PLC Backplane | Railway Signaling Node |
|---|---|
Use Scenario: Distributed I/O modules communicate over deterministic Ethernet backplane with strict jitter limits. IC Role / Device Role / Timing Role: Switch controller manages time-critical cyclic data exchange between master controller and slave modules. Use Value: Hardware QoS and IGMP snooping ensure priority handling of motion control packets and suppression of non-essential multicast traffic. | Use Scenario: Onboard train network interconnects ATP, PIS, and CCTV subsystems across multiple carriages. IC Role / Device Role / Timing Role: Centralized 3-port switch routes safety-critical and infotainment traffic with VLAN isolation. Use Value: IEEE 802.1Q VLAN segmentation prevents interference between safety and non-safety domains per EN 50128 SIL-2 requirements. |
| Smart Grid RTU | Building BMS Gateway |
Use Scenario: Remote terminal unit collects data from legacy serial field devices and tunnels it over Ethernet to SCADA. IC Role / Device Role / Timing Role: Switch controller bridges serial-to-Ethernet protocol converters and upstream communication module. Use Value: Integrated MAC and MII interface reduce component count and PCB footprint versus discrete MAC+PHY+switch solution. | Use Scenario: Gateway aggregates BACnet MS/TP, Modbus RTU, and KNX devices onto IP backbone for centralized HVAC monitoring. IC Role / Device Role / Timing Role: Traffic manager prioritizes alarm and setpoint update packets over periodic sensor polling. Use Value: WRR-based QoS ensures sub-100 ms response for emergency override commands despite background polling load. |
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-LF | 5-port switch with no integrated MAC; requires external PHY and host-side MAC stack | Lacks embedded ARM7 core and SNMP agent; relies on host processor for management | Preferred when higher port count is needed and host has sufficient processing headroom |
| Microchip LAN9303-ABZ | 3-port switch with integrated PHY but no embedded processor; uses SPI host interface | No standalone management capability; requires external microcontroller for SNMP/web services | Selected where board space is constrained and integrated PHY eliminates external transceivers |
Compared with ADM6999UA2T1, the Marvell 88E6060 offers more ports but demands full host-based protocol stack implementation, while the Microchip LAN9303 reduces BOM count via PHY integration but forfeits autonomous management - making ADM6999UA2T1 optimal for self-contained, low-host-overhead industrial gateways.
Availability
ADM6999UA2T1 is available at Aetrix Electronics and suitable for industrial PLC backplanes, railway signaling nodes, and smart grid RTUs requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ADM6999UA2T1 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 and manufacturing infrastructure.
The ADM6999 series targets industrial Ethernet infrastructure, delivering integrated switch controllers with embedded intelligence to simplify design of deterministic, standards-compliant edge networking equipment.
FAQ
Does ADM6999UA2T1 support Gigabit Ethernet?
No. ADM6999UA2T1 is strictly a 10/100BASE-TX switch controller. It does not support 1000BASE-T or any Gigabit physical layer. Its MII/RMII interfaces are defined for Fast Ethernet speeds only, and its internal switch fabric bandwidth is rated at 200 Mbps full-duplex aggregate throughput.
Can ADM6999UA2T1 operate without external EEPROM?
Yes. While external EEPROM is supported for persistent configuration storage (e.g., MAC address, VLAN settings), the device boots from internal ROM with default register values and can be fully configured via host writes to its memory-mapped control registers during initialization.
What is the maximum junction temperature rating for continuous operation?
The ADM6999UA2T1 is rated for continuous operation up to +105°C junction temperature. The 128LQFP package with exposed thermal pad enables reliable thermal performance in industrial enclosures when mounted on 2 oz copper PCBs with ≥4 thermal vias under the pad.
Is the embedded ARM7TDMI core accessible for custom firmware development?
No. The ARM7TDMI core runs pre-programmed firmware for SNMP, web server, and switch management tasks. It is not user-programmable or debug-accessible; its instruction memory and peripherals are locked to prevent modification and ensure functional safety compliance.
ADM6999UA2T1 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:
- -
ADM6999UA2T1 FAQ
1.How can I place an order for ADM6999UA2T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6999UA2T1 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 ADM6999UA2T1 reliable?
The price and inventory of ADM6999UA2T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6999UA2T1 is usually 5 days.
3.What payment methods are accepted for ADM6999UA2T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6999UA2T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6999UA2T1?
ADM6999UA2T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6999UA2T1 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 ADM6999UA2T1?
For technical support, including ADM6999UA2T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6999UA2T1 requirements.
6.How does Aetrix verify that ADM6999UA2T1 is sourced from the original manufacturer or authorized distributors?
All ADM6999UA2T1 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 ADM6999UA2T1 meets industry standards.
7.What is the process for return or replacement of ADM6999UA2T1?
All ADM6999UA2T1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6999UA2T1, 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 ADM6999UA2T1 part is unused and in its original packaging.
Return procedure for ADM6999UA2T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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