Infineon Technologies ADM7001X-AC-R-1

Overview

ADM7001X-AC-R-1 from Infineon Technologies is a single-port 10/100 Mbps Ethernet physical layer transceiver (PHY) supporting MII, RMII, and GPSI MAC interfaces. It integrates 100BASE-TX/10BASE-T functionality, auto-negotiation, clock synthesis, and LED status indication in a 64-pin LQFP package. Designed for embedded networking applications, it operates at 2.5 V core voltage with integrated 3.3 V regulator control and supports green (lead-free) packaging per RoHS.

For engineers reviewing the ADM7001X-AC-R-1 datasheet, ADM7001X-AC-R-1 pinout, ADM7001X-AC-R-1 application, or ADM7001X-AC-R-1 equivalent, key selection considerations include RMII/MII interface flexibility, integrated clock synthesizer eliminating external crystal in RMII mode, 2.5 V core operation with 3.3 V I/O tolerance, and support for automatic link polarity detection and smart squelch in noisy environments.

Technical Context

The ADM7001X-AC-R-1 implements a full-duplex 10/100BASE-TX PHY with integrated 100BASE-FX receiver capability and 10BASE-T transceiver. Its analog front-end includes adaptive equalization, carrier sense, collision detection, jabber protection, and link test functions - all compliant with IEEE 802.3u standards.

It supports three MAC interface modes: standard 16-pin MII, compact 7-pin RMII (with 50 MHz REFCLK input/output), and 4-pin GPSI for low-pin-count microcontroller connectivity. The device uses internal PLL-based clock synthesis for 25 MHz (100M) or 2.5 MHz (10M) MII timing, and provides configurable LED outputs for link/activity/speed status.

Key Specifications

Pinout & Package

The ADM7001X-AC-R-1 is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are validated per Infineon's Rev. 1.07 datasheet Figure 2 (Pin Diagram) and Section 2.2 (Pin Description).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10/100 Mbps PHY applications.

Compared with LAN8720A and RTL8201CP, the ADM7001X-AC-R-1 uniquely combines RMII clock synthesis, GPSI support, and regulator control - reducing total solution size and component count in cost-sensitive, multi-interface embedded systems.

Availability

ADM7001X-AC-R-1 is available at Aetrix Electronics and suitable for industrial gateways, smart home hubs, networked medical devices, and POS terminals requiring stable component supply across extended product lifecycles.

Supply support for ADM7001X-AC-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 AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and communications ICs, with global R&D and manufacturing infrastructure.

The ADM7001/X series was developed as part of Infineon's Communications PHY product line to deliver highly integrated, low-power Ethernet connectivity for embedded systems where pin count, BOM cost, and thermal efficiency are critical constraints.

FAQ

Does ADM7001X-AC-R-1 support Power over Ethernet (PoE)?

No, ADM7001X-AC-R-1 does not integrate PoE functionality. It is a PHY-only device without power sourcing or detection circuitry. To implement PoE, an external IEEE 802.3af/at-compliant PD controller (e.g., Infineon IRS21844) and isolated DC-DC converter must be added upstream of the transformer. The PHY's 2.5 V core supply remains independent of PoE power path.

Can ADM7001X-AC-R-1 operate in 10BASE-T only mode without auto-negotiation?

Yes, the device supports forced 10BASE-T half/full-duplex operation via hardware strapping (MODE[1:0] pins) or software register configuration (BMCR bit 12 = 0). In this mode, auto-negotiation is disabled, and the PHY asserts link status based solely on carrier detect and jabber-free reception - useful for legacy hub environments or deterministic boot-time communication.

What is the maximum trace length supported for RMII REFCLK routing?

Per Infineon's datasheet Section 5.3.1, RMII REFCLK (XI) trace length should not exceed 10 cm with controlled impedance (50 Ω ±10%) and minimal stubs. Longer traces require series termination or buffer placement near the PHY input. Jitter budget is ±1 ns; exceeding trace limits risks setup/hold violations in RMII transmit/receive paths.

Is the ADM7001X-AC-R-1 pin-compatible with earlier ADM7001 revisions?

Yes, ADM7001X-AC-R-1 maintains identical pinout and electrical characteristics with Rev. 1.06 and later versions. Key changes from Rev. 1.04 included removal of TQFP option (Section 6.2 history) and addition of green package marking (Rev. 1.07); all LQFP variants share mechanical and functional compatibility per datasheet Table 1-1 and Figure 2.