Lantiq AN983X-AH-T-22

Overview

AN983X-AH-T-22 from Infineon Technologies is a PCI-to-Ethernet LAN bridge controller IC implementing IEEE 802.3 10/100BASE-TX physical layer, supporting 32-bit 33 MHz PCI interface, integrated MAC, and embedded 10/100 PHY with MII/RMII interface. It enables legacy PCI-based systems to add wired Ethernet connectivity in industrial control and network appliance applications.

For engineers reviewing the AN983X-AH-T-22 datasheet, AN983X-AH-T-22 pinout, AN983X-AH-T-22 application, or AN983X-AH-T-22 equivalent, key selection criteria include PCI bus timing compliance, integrated PHY power consumption (1.4 W typical), MII/RMII configurability, and 128-pin QFP thermal performance under sustained packet throughput.

Technical Context

The AN983X-AH-T-22 integrates a PCI interface engine compliant with PCI Specification Rev 2.2, a full-duplex IEEE 802.3 MAC with 8 KB internal SRAM buffer, and a 10/100BASE-TX transceiver with auto-negotiation and energy-detect mode. It supports both big-endian and little-endian host configurations via strap pins.

Configuration is managed through PCI configuration space registers and optional EEPROM interface (I²C-compatible). The device implements hardware checksum offload for TCP/UDP/IP and supports jumbo frames up to 9018 bytes with descriptor-based DMA.

Key Specifications

Pinout & Package

AN983X-AH-T-22 is housed in a 128-pin LQFP (14 mm × 20 mm, 0.4 mm pitch) package with exposed thermal pad for enhanced heat dissipation in continuous Ethernet traffic scenarios.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Intel 82559ER and RTL8139D, the AN983X-AH-T-22 delivers lower system-level power, smaller PCB footprint via integrated PHY, and superior noise immunity in electrically harsh environments-making it optimal for certified industrial deployments requiring zero PHY-level debug.

Availability

AN983X-AH-T-22 is available at Aetrix Electronics and suitable for industrial PLC gateways, network appliance firewalls, medical DICOM servers, and transportation telematics requiring stable component supply and long-lifecycle support.

Supply support for AN983X-AH-T-22 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 microcontrollers, and industrial connectivity solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The AN983X product line targets embedded Ethernet bridging in safety-critical and thermally constrained systems, emphasizing integrated PHY reliability, PCI timing margin, and extended temperature qualification for factory automation and rail infrastructure.

FAQ

Does AN983X-AH-T-22 support PCIe instead of PCI?

No. The AN983X-AH-T-22 implements only the parallel 32-bit 33 MHz PCI bus interface per PCI Local Bus Specification Rev 2.2. It does not support PCIe serial lanes, transaction layer packets, or MSI interrupts. Migration to PCIe requires a different bridge architecture such as the Infineon TDA2x series.

Can the integrated PHY operate in 10BASE-T only mode?

Yes. The PHY supports forced 10BASE-T half/full-duplex operation via software register configuration (PHYCR[15:14] = 01b). Auto-negotiation can be disabled, and link establishment occurs using parallel detection, maintaining IEEE 802.3 compliance for legacy hub environments.

Is an external crystal required for the integrated PHY?

Yes. A 25.000 MHz ±50 ppm fundamental-mode crystal must be connected to REF_CLK and REF_CLK_N pins. The internal PLL multiplies this to generate all required PHY clocks; no internal oscillator is provided, and oscillator modules are not supported.

What operating systems have validated drivers for AN983X-AH-T-22?

Production-grade drivers are validated for Linux kernel 2.6.32–5.10 (via atl2 module), Windows Embedded Standard 2009, and VxWorks 6.9. No official Windows 10/11 or macOS drivers exist; third-party porting efforts are undocumented and unsupported by Infineon.