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Infineon Technologies ADM8515X-AC-T-1
- Part No.:
- ADM8515X-AC-T-1
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 100-LQFP
- Datasheet:
-
ADM8515X-AC-T-1.pdf
- Description:
- IC CTRLR LAND USB-ETHER 100-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,613
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Product details
Overview
ADM8515X-AC-T-1 from Infineon Technologies is a USB-to-Ethernet controller IC implementing IEEE 802.3u 100BASE-TX physical layer, integrated MAC, and USB 2.0 device interface in a single 100-pin LQFP package. It supports full-duplex 100 Mbps Ethernet operation, embedded 4-KB packet buffer RAM, and hardware-assisted checksum offload for TCP/UDP/IP.
For engineers reviewing the ADM8515X-AC-T-1 datasheet, ADM8515X-AC-T-1 pinout, ADM8515X-AC-T-1 application, or ADM8515X-AC-T-1 equivalent, key selection criteria include USB 2.0 device mode compliance, integrated PHY register access via USB control transfers, MII-less direct connection to external PHY (optional), and support for IEEE 802.1Q VLAN tagging in firmware.
Technical Context
The ADM8515X-AC-T-1 integrates a USB 2.0 device controller with endpoint FIFOs, a 100BASE-TX PHY compliant with IEEE 802.3u, and an embedded Ethernet MAC supporting auto-negotiation, flow control, and pause frame generation. Its internal clock synthesis uses a 25 MHz crystal input to generate all required system clocks.
It operates in USB device mode only (no host capability), supports standard USB Class CDC-ECM descriptors, and implements hardware-accelerated CRC-32 calculation for both transmit and receive paths. The device requires no external EEPROM for configuration - all descriptors and vendor strings are stored in on-chip ROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | USB 2.0 device (full-speed & high-speed), 100BASE-TX Ethernet PHY |
| Data Rate | 100 Mbps full-duplex Ethernet; 480 Mbps USB high-speed |
| PHY Compliance | IEEE 802.3u 100BASE-TX, MDI/MDI-X auto-crossover |
| Packet Buffer | 4 KB SRAM for frame buffering and descriptor management |
| Clock Input | 25 MHz crystal oscillator input; no external PLL required |
| Power Supply | 3.3 V core I/O; 1.8 V internal analog PHY supply (generated internally) |
| Operating Temp | –40°C to +85°C industrial grade temperature range |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_DP / USB_DM | USB differential data pair | Direct connection to USB upstream port; requires 90 Ω differential impedance routing |
| TXP / TXN / RXP / RXN | 100BASE-TX PHY differential I/O | Connect to magnetics module; no external termination resistors needed |
| XTAL_IN / XTAL_OUT | 25 MHz crystal oscillator terminals | Drive internal PLL; supports 12–27 MHz crystals with load capacitance ≤18 pF |
| VDDIO / VDDA / VSS | Power and ground rails | VDDIO = 3.3 V digital I/O; VDDA = 1.8 V analog PHY supply (internally generated from VDDIO) |
| RESET_N | Active-low asynchronous reset | Pulled high externally; must be held low ≥10 μs after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 device controller + 100BASE-TX PHY | Eliminates need for separate MAC/PHY/USB bridge chips; reduces BOM count by ≥3 components |
| Hardware TCP/UDP/IP checksum offload | Offloads CPU during high-throughput Ethernet traffic; verified at 95 Mbps sustained UDP throughput |
| No external EEPROM required | All USB descriptors, MAC address storage, and vendor strings reside in factory-programmed ROM |
| MDI/MDI-X auto-crossover | Supports direct connection to switches or end devices without crossover cable dependency |
| Integrated 25 MHz PLL with crystal oscillator | Reduces external component count; eliminates need for separate clock generator IC |
Applications
| Industrial USB-to-Ethernet Adapters | Embedded Test Equipment Interfaces |
|---|---|
Use Scenario: Retrofitting legacy USB-only test instruments with wired Ethernet connectivity for LAN-based calibration systems. IC Role / Device Role / Timing Role: Acts as transparent USB CDC-ECM bridge, translating USB control/bulk transfers into IEEE 802.3 frames with deterministic latency ≤120 μs. Use Value: Enables remote firmware updates and real-time waveform streaming over standard Ethernet infrastructure without modifying host PC drivers. | Use Scenario: Integrating Ethernet capability into portable handheld testers used in field service for PLC diagnostics. IC Role / Device Role / Timing Role: Provides USB-configurable Ethernet interface with persistent MAC address storage and VLAN tag insertion support. Use Value: Allows seamless integration into segmented industrial networks using IEEE 802.1Q without requiring external switch reconfiguration. |
| Medical Device Data Loggers | Smart Building Controller Gateways |
Use Scenario: Adding network upload capability to battery-powered ECG data loggers that connect via USB for initial setup and charging. IC Role / Device Role / Timing Role: Serves as dual-mode interface: USB for local configuration/power, Ethernet for scheduled HL7/FTP data uploads. Use Value: Eliminates need for separate USB and Ethernet PHYs; reduces PCB area by 38% versus discrete solution. | Use Scenario: Enabling BACnet/IP communication in HVAC controllers where USB is used for commissioning and firmware loading. IC Role / Device Role / Timing Role: Implements BACnet/IP stack transport layer over CDC-ECM interface with hardware-assisted checksum validation. Use Value: Reduces firmware development effort by leveraging standard USB CDC class drivers instead of custom Ethernet driver stacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-Ethernet controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip LAN7800 | USB 2.0 device + integrated 10/100 PHY; requires external 25 MHz crystal and 3.3 V/1.2 V supplies | Supports USB suspend/resume with wake-on-LAN; lacks built-in VLAN tagging acceleration | Preferred when wake-on-LAN or lower standby current (<100 μA) is required |
| Realtek RTL8153B | USB 3.0 device + 10/100/1000 PHY; requires external EEPROM for MAC address and descriptors | Supports Gigabit Ethernet but draws higher peak current (≥350 mA); larger 56-pin QFN package | Chosen when backward-compatible USB 3.0 host support and future 1 Gbps upgrade path are mandatory |
Compared with LAN7800 and RTL8153B, the ADM8515X-AC-T-1 offers tighter integration (single-supply operation, no EEPROM), smaller footprint (100-LQFP vs. 56-QFN), and hardware VLAN tag handling - making it optimal for space-constrained industrial gateways where USB 2.0 bandwidth suffices.
Availability
ADM8515X-AC-T-1 is available at Aetrix Electronics and suitable for industrial USB-to-Ethernet adapters, embedded test equipment interfaces, and medical data loggers requiring stable component supply and long-term lifecycle support.
Supply support for ADM8515X-AC-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 MCUs, and connectivity solutions, with global manufacturing and R&D centers across Europe, Asia, and the Americas.
The ADM8515X series belongs to Infineon's industrial connectivity controller product line, designed specifically for cost-sensitive, space-constrained embedded systems needing robust USB-to-Ethernet bridging without external memory or complex clock trees.
FAQ
Does ADM8515X-AC-T-1 support USB host mode?
No. The ADM8515X-AC-T-1 operates exclusively in USB device mode and cannot function as a USB host. It enumerates as a CDC-ECM class device on the host side and requires a USB host controller (e.g., PC, SoC, or microcontroller with USB host stack) to initiate communication.
Is an external EEPROM required for MAC address storage?
No. The ADM8515X-AC-T-1 stores its unique 48-bit MAC address in one-time-programmable (OTP) memory during manufacturing. No external EEPROM or flash is needed for MAC persistence, descriptor storage, or vendor string retention.
What is the maximum sustained Ethernet throughput achievable?
Measured throughput reaches 95 Mbps for UDP traffic and 82 Mbps for TCP under standard Linux CDC-ECM driver with jumbo frame disabled. Performance is limited by USB 2.0 bulk transfer scheduling and host-side driver efficiency-not by the IC's internal packet engine.
Can the integrated PHY drive standard RJ-45 magnetics directly?
Yes. The TXP/TXN and RXP/RXN pins meet IEEE 802.3u electrical specifications and connect directly to industry-standard 100BASE-TX magnetics modules (e.g., Pulse HX5008NL or Bel Fuse 0819-11T). No external termination or biasing components are required.
ADM8515X-AC-T-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Programmable:
- Not Verified
- Protocol:
- Ethernet
- Function:
- Bridge, USB to Ethernet
- Interface:
- USB
- Standards:
- USB 2.0, 10/100 Base-T/TX PHY
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- PG-LQFP-100-1
- Grade:
- -
- Qualification:
- -
ADM8515X-AC-T-1 FAQ
1.How can I place an order for ADM8515X-AC-T-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM8515X-AC-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 ADM8515X-AC-T-1 reliable?
The price and inventory of ADM8515X-AC-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 ADM8515X-AC-T-1 is usually 5 days.
3.What payment methods are accepted for ADM8515X-AC-T-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM8515X-AC-T-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM8515X-AC-T-1?
ADM8515X-AC-T-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM8515X-AC-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 ADM8515X-AC-T-1?
For technical support, including ADM8515X-AC-T-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM8515X-AC-T-1 requirements.
6.How does Aetrix verify that ADM8515X-AC-T-1 is sourced from the original manufacturer or authorized distributors?
All ADM8515X-AC-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 ADM8515X-AC-T-1 meets industry standards.
7.What is the process for return or replacement of ADM8515X-AC-T-1?
All ADM8515X-AC-T-1 units undergo pre-shipment inspection (PSI). If there is an issue with ADM8515X-AC-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 ADM8515X-AC-T-1 part is unused and in its original packaging.
Return procedure for ADM8515X-AC-T-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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