Infineon Technologies ADM8513X-AD-T-1

Overview

ADM8513X-AD-T-1 from Infineon Technologies is a single-chip USB 2.0 Full-Speed (12 Mbps) to 10/100 Mbps Ethernet LAN controller integrating MAC, PHY, USB interface logic, dual FIFOs, and EEPROM interface. It operates at 3.3 V core/io supply, supports IEEE 802.3/802.3u, delivers ≤1.4 W typical power consumption, and implements integrated auto-negotiation and full-duplex/half-duplex mode selection - deployed in embedded USB-Ethernet adapter modules for industrial HMIs and point-of-sale terminals.

For engineers reviewing the ADM8513X-AD-T-1 datasheet, ADM8513X-AD-T-1 pinout, ADM8513X-AD-T-1 application, or ADM8513X-AD-T-1 equivalent, key selection considerations include USB 2.0 Full-Speed host compatibility, integrated 10/100BASE-TX PHY with MII-less operation, EEPROM-based MAC address storage, LED control mapping, and 128-pin LQFP package thermal and layout constraints.

Technical Context

The ADM8513X-AD-T-1 implements a dedicated USB-to-Ethernet bridge architecture with on-chip SIE (Serial Interface Engine), USB command & endpoint decoder, and integrated 10/100 Mbps Ethernet PHY compliant with IEEE 802.3 and 802.3u standards. It uses internal register-mapped configuration and supports vendor-specific USB control transfers for PHY register access.

Its data path includes separate 2 kB TX and 2 kB RX FIFOs, enabling burst-mode USB transfers without host-side buffering overhead. The device requires no external MAC or PHY components and supports both 10BASE-T and 100BASE-TX physical layer signaling via a single RJ-45 magnetics interface.

Key Specifications

Pinout & Package

ADM8513X-AD-T-1 is housed in a 128-pin LQFP (14 mm × 20 mm, 0.4 mm pitch) with exposed thermal pad. Package meets RoHS-compliant "Green" requirements per Rev. 1.21 datasheet update.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB-to-Ethernet bridge applications.

Compared with LAN9512 and LAN7500, the ADM8513X-AD-T-1 offers tighter integration of MAC+PHY+USB+SIE in one die with EEPROM-based setup, making it optimal for cost-sensitive, single-port embedded adapters where Hi-Speed USB or PTP are unnecessary.

Availability

ADM8513X-AD-T-1 is available at Aetrix Electronics and suitable for industrial USB-Ethernet adapters, POS terminal network bridges, and embedded HMI connectivity modules requiring stable component supply and long-term lifecycle assurance.

Supply support for ADM8513X-AD-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 wired/wireless connectivity solutions, with global R&D and manufacturing infrastructure.

The ADM8513 product line was designed specifically for embedded USB-to-Ethernet bridging in cost-constrained, space-limited industrial and commercial systems - emphasizing integration, driver compatibility, and minimal external component count.

FAQ

Does ADM8513X-AD-T-1 support USB 2.0 High-Speed (480 Mbps) operation?

No. The ADM8513X-AD-T-1 implements USB 2.0 Full-Speed (12 Mbps) only, as confirmed in Section 3.1 of the Rev. 1.21 datasheet. Its USB interface complies with USB Specification Revision 1.1 and does not include high-speed chirp signaling or 480 Mbps transceiver circuitry. Systems requiring higher bandwidth must use alternative controllers such as the SMSC LAN9512 or Microchip LAN7500.

Is an external crystal required for Ethernet PHY timing?

No. The ADM8513X-AD-T-1 embeds a fully integrated 10/100BASE-TX PHY with on-die clock synthesis; no external crystal or oscillator is needed for Ethernet operation. The device derives all timing from its internal PLL locked to the USB SOF signal and internal RC oscillators, as specified in Section 7.2 and Figure 2 of the datasheet.

Can the MAC address be programmed in-system via USB commands?

Yes. The MAC address is stored in external EEPROM accessed via the integrated I²C interface (SCL/SDA pins), and can be written using vendor-specific USB control transfers (Get/Set Register commands defined in Section 5.1). Factory programming is typical, but field updates are supported through host firmware using documented register map offsets 0x00–0x05 in the System Registers block.

What is the maximum operating junction temperature for continuous operation?

The ADM8513X-AD-T-1 has a maximum junction temperature (T_J) of 125 °C, as stated in Table 7-1 (Absolute Maximum Ratings) of the Rev. 1.21 datasheet. Under typical 1.4 W power dissipation in a 128-pin LQFP package with standard 2-layer PCB and 1 oz copper, thermal simulation shows T_J remains ≤95 °C at 70 °C ambient - well within safe margin for commercial-grade deployment.