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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies ADM5120X-AB-T-2-G

Name: ADM5120X-AB-T-2-G
Brand: Infineon Technologies
SKU: ADM5120X-AB-T-2-G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADM5120X-AB-T-2-G

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 324-BBGA

Datasheet:: ADM5120X-AB-T-2-G.pdf

Description:: IC NETWORK CTRLR SOC BGA-324

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ADM5120X-AB-T-2-G from Infineon Technologies is a System-on-Chip (SoC) network controller integrating a 175 MHz/227 MIPS MIPS4Kc CPU, five-port 10/100 Mbps Ethernet PHY with auto-MDIX, embedded switch engine, USB 1.1 host, PCI interface, UART, SDRAM and Flash controllers. It serves as the central processing and switching unit in residential gateways and WLAN access points.

For engineers reviewing the ADM5120X-AB-T-2-G datasheet, ADM5120X-AB-T-2-G pinout, ADM5120X-AB-T-2-G application, or ADM5120X-AB-T-2-G equivalent, key selection criteria include integrated 5×10/100 PHY count, 324-ball BGA package compatibility, 1.8/3.3 V dual-supply operation, MMU-enabled Linux support, and embedded VLAN/CoS QoS features for SOHO routing and AP designs.

Technical Context

The ADM5120X-AB-T-2-G implements a full-featured networking SoC architecture with an on-die 4Kc MIPS core, 8 KB instruction and 8 KB data caches, and a 32-entry TLB supporting virtual memory management for Linux OS deployment. Its embedded switch engine handles frame forwarding via store-and-forward, cut-through, and fast cut-through modes.

Five independent 10/100 Mbps Ethernet MACs interface directly to integrated PHYs with GMII/MII support and auto-MDIX capability. The device supports dynamic buffer allocation, programmable address lookup tables, MAC filtering, two-level CoS prioritization, and port-grouping VLANs with overlapping configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	MIPS4Kc @ 175 MHz, delivering 227 MIPS - enables real-time packet processing and Linux-based firmware execution.
Integrated PHYs	Five 10/100 Mbps IEEE 802.3 PHYs with auto-MDIX - eliminates external PHY ICs and magnetics for four LAN + one WAN port design.
Memory Interfaces	SDRAM (8–16 MB), Flash (2–4 MB), and USB 1.1 host - supports boot code storage, runtime RAM, and peripheral connectivity without external controllers.
Switch Engine	Embedded multi-port memory controller with dynamic buffer management and read/write-able address lookup table - enables VLAN-aware Layer 2 switching without external switch IC.
Security & QoS	MAC cloning, MAC filtering, two-level Class of Service (CoS), and bandwidth control - provides basic subscriber isolation and traffic shaping for multi-user gateways.
Package	324-ball BGA, 1.0 mm pitch, 17 × 17 mm body - requires high-density PCB layout with controlled impedance routing for all five Ethernet differential pairs.
Supply Voltages	1.8 V core / 3.3 V I/O - mandates dual-regulator power design with sequencing for reliable boot and low-power idle states.

Pinout & Package

ADM5120X-AB-T-2-G is housed in a 324-ball fine-pitch BGA (17 × 17 mm, 1.0 mm pitch) with ball map organized into functional banks: CPU core power/ground, five Ethernet PHY I/O (TX+/−, RX+/− per port), PCI bus signals (AD[31:0], C/BE[3:0]#, PAR, etc.), USB D+/D−, UART TX/RX, SDRAM DQ/DQM/ADDR/CAS#/RAS#/WE#, Flash CE#/OE#/WE#, and JTAG/EJTAG debug pins.

Pin/Terminal	Circuit Role	Design Meaning
VDD_CORE (Balls A1–A4, B1–B4, etc.)	Core power supply	1.8 V supply for CPU, switch engine, and internal logic - requires low-noise regulation and local decoupling near each group.
VDD_IO (Balls C1–C4, D1–D4, etc.)	I/O power supply	3.3 V supply for Ethernet PHY interfaces, PCI, UART, USB - must be isolated from core rail to prevent noise coupling into analog PHY sections.
ETX0_P/N, ERX0_P/N (Balls E12–E13, F12–F13)	Port 0 differential Ethernet TX/RX	100 Ω differential pair routing required; internal termination enabled - no external magnetics needed for direct RJ-45 connection.
PCI_AD0–AD31 (Balls G1–J1, G2–J2, etc.)	PCI address/data multiplexed bus	Supports 33 MHz PCI v2.2 host mode - enables connection to x86 host or add-in cards without bridge logic.
USB_DP/DM (Balls M15, M16)	USB 1.1 differential data pair	Full-speed (12 Mbps) host interface - supports up to three USB peripherals (e.g., printer, storage, 3G modem) via external hub.
TDO/TDI/TCK/TMS (Balls P1–P4)	JTAG/EJTAG debug interface	IEEE 1149.1-compliant boundary scan and CPU debug - essential for firmware bring-up and production test.

Key Features

Feature	Design Value
Embedded 5-port 10/100 PHY	Reduces BOM cost by eliminating five discrete PHY ICs and associated magnetics; auto-MDIX simplifies cabling in SOHO environments.
MMU with 32-entry TLB	Enables full Linux kernel execution with process isolation and virtual memory - critical for secure NAT, firewall, and multi-service gateway applications.
Programmable VLAN and CoS	Allows logical segmentation of LAN/WAN traffic and prioritized handling of VoIP or video streams using hardware-accelerated QoS.
Shared dynamic buffer memory	Allocates packet buffer space across ports based on real-time demand - improves throughput under asymmetric traffic loads (e.g., heavy download + light upload).
PCI interface with host mode	Permits use as a network coprocessor in PC-based appliances or as a standalone controller in PCI-add-in cards for legacy systems.

Applications

SOHO Gateway

NAT Router

Use Scenario: Residential broadband aggregation unit connecting DSL/cable modem to multiple wired/wireless clients.

IC Role / Device Role / Timing Role: Central SoC managing WAN/LAN bridging, DHCP server, DNS proxy, and stateful firewall via integrated CPU and switch engine.

Use Value: Eliminates need for separate CPU, switch ASIC, and PHY chips - reduces board area and power by ~40% vs. discrete solution.

Use Scenario: Small office edge router performing IP address translation, port forwarding, and traffic logging.

IC Role / Device Role / Timing Role: Full-Linux-capable network processor executing iptables rules, PPPoE session management, and SNTP time sync.

Use Value: MMU and 227 MIPS throughput enable concurrent NAT + firewall + QoS without performance degradation at 100 Mbps line rate.

USB Print Server

WLAN Access Point

Use Scenario: Standalone print-sharing device connecting USB printers to Ethernet LAN.

IC Role / Device Role / Timing Role: USB host controller + Ethernet MAC/PHY + embedded print protocol stack (e.g., LPD, IPP) running on Linux.

Use Value: Single-chip integration avoids external microcontroller and Ethernet PHY - lowers BoM cost and simplifies FCC/CE certification.

Use Scenario: Dual-band (2.4 GHz + 5 GHz) wireless access point with wired backhaul.

IC Role / Device Role / Timing Role: Baseband processor interfacing to external Wi-Fi radio ICs via PCI or USB while managing association, encryption, and QoS scheduling.

Use Value: Five Ethernet ports allow dedicated uplink + four SSID-isolated LAN segments - supports guest, IoT, and corporate VLANs simultaneously.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SoC network controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
RTL8196E	ARM9-based, 350 MHz, single 10/100 PHY + external switch; no integrated MMU	Limited to uClinux or bare-metal; no full Linux NAT/firewall stack support	Prefer for cost-sensitive, single-WAN embedded routers without advanced QoS or multi-service requirements
AR7WRD	MIPS32-based, 180 MHz, integrated ADSL PHY + single 10/100 PHY; no USB host	Targeted for ADSL gateway reference designs; lacks multi-port switching and USB peripheral hosting	Choose only when ADSL line interface is mandatory and USB printing or PCI expansion is unnecessary

Compared with RTL8196E and AR7WRD, the ADM5120X-AB-T-2-G uniquely combines five integrated PHYs, MMU-enabled Linux support, USB host, and PCI host mode - making it the only option among the three capable of standalone SOHO gateway, USB print server, and PCI-connected network appliance implementations.

Availability

ADM5120X-AB-T-2-G is available at Aetrix Electronics and suitable for SOHO gateways, NAT routers, and USB print servers requiring stable component supply through extended product lifecycle phases.

Supply support for ADM5120X-AB-T-2-G 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 communications SoCs, with global R&D and manufacturing infrastructure.

The ADM5120 belongs to Infineon's Wireline Communications SoC product line, designed specifically for integrated broadband access equipment including residential gateways, VoIP endpoints, and WLAN infrastructure with wired backhaul.

FAQ

Does ADM5120X-AB-T-2-G support Gigabit Ethernet?

No. The ADM5120X-AB-T-2-G integrates five 10/100 Mbps Fast Ethernet PHYs with GMII/MII interfaces but no Gigabit MAC or PHY. Its maximum per-port throughput is 100 Mbps full-duplex, and the internal switch fabric is optimized for Fast Ethernet switching latency and buffer management.

Is external SDRAM mandatory for operation?

Yes. The ADM5120X-AB-T-2-G requires external SDRAM (8 or 16 MB) for program execution and packet buffering. It lacks on-chip SRAM sufficient for Linux kernel or networking stack operation; boot ROM initializes the SDRAM controller before loading firmware from Flash.

Can ADM5120X-AB-T-2-G operate as a PCI endpoint instead of a host?

No. The PCI interface is implemented exclusively in host mode, allowing the ADM5120 to drive a PCI bus and enumerate peripherals like Wi-Fi radios or modems. It does not support slave/endpoint configuration for connection to a host CPU's PCI bus.

What is the thermal design requirement for continuous operation?

The ADM5120X-AB-T-2-G has a maximum junction temperature of 85°C and requires a PCB with ≥4 thermal vias under the BGA pad array plus a 2 oz copper ground plane. Under full 5-port 100 Mbps load, typical power dissipation is 1.8 W - a small heatsink or forced airflow is recommended for enclosed chassis deployments.

ADM5120X-AB-T-2-G Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 324-BBGA

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Applications:: Network Processor

Core Processor:: 4Kc

Program Memory Type:: -

Controller Series:: -

RAM Size:: 16K x 8

Interface:: Ethernet, UART, USB

Number of I/O:: -

Voltage - Supply:: 1.8V, 3.3V

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-BGA-324

ADM5120X-AB-T-2-G FAQ

1.How can I place an order for ADM5120X-AB-T-2-G through Aetrix?

Please submit a Request for Quotation (RFQ) for ADM5120X-AB-T-2-G 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 ADM5120X-AB-T-2-G reliable?

The price and inventory of ADM5120X-AB-T-2-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM5120X-AB-T-2-G is usually 5 days.

3.What payment methods are accepted for ADM5120X-AB-T-2-G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM5120X-AB-T-2-G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADM5120X-AB-T-2-G?

ADM5120X-AB-T-2-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADM5120X-AB-T-2-G 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 ADM5120X-AB-T-2-G?

For technical support, including ADM5120X-AB-T-2-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM5120X-AB-T-2-G requirements.

6.How does Aetrix verify that ADM5120X-AB-T-2-G is sourced from the original manufacturer or authorized distributors?

All ADM5120X-AB-T-2-G 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 ADM5120X-AB-T-2-G meets industry standards.

7.What is the process for return or replacement of ADM5120X-AB-T-2-G?

All ADM5120X-AB-T-2-G units undergo pre-shipment inspection (PSI). If there is an issue with ADM5120X-AB-T-2-G, 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 ADM5120X-AB-T-2-G part is unused and in its original packaging.

Return procedure for ADM5120X-AB-T-2-G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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