Infineon Technologies ADM3120BX-AB-T-2-G

Overview

ADM3120BX-AB-T-2-G from Infineon Technologies is a System-on-Chip (SoC) network controller with integrated ARM Cortex-M4F processor, 1 MB Flash, 256 KB SRAM, and dual 10/100 Ethernet MACs supporting IEEE 802.3u. It targets industrial Ethernet edge nodes requiring deterministic real-time communication and secure firmware execution.

For engineers reviewing the ADM3120BX-AB-T-2-G datasheet, ADM3120BX-AB-T-2-G pinout, ADM3120BX-AB-T-2-G application, or ADM3120BX-AB-T-2-G equivalent, key selection criteria include dual Ethernet MAC timing alignment, integrated crypto acceleration (AES-128/256, SHA-256), and LFBGA-225 package thermal performance in DIN-rail mounted gateways.

Technical Context

This SoC integrates two independent 10/100 Ethernet MACs with MII/RMII interfaces, each with dedicated DMA channels and hardware timestamping compliant with IEEE 1588-2008. The ARM Cortex-M4F core operates at up to 200 MHz with FPU and MPU support for real-time task isolation.

On-chip security includes a dedicated cryptographic engine supporting AES-GCM, RSA-2048 signature verification, and TRNG. Power management features three low-power modes (Sleep, Deep Sleep, Standby) with wake-up latency under 10 µs from Deep Sleep via Ethernet event.

Key Specifications

Pinout & Package

ADM3120BX-AB-T-2-G uses a 225-ball LFBGA package (13 mm × 13 mm, 0.8 mm pitch) with exposed thermal pad. Ball mapping follows Infineon's standard BGA layout for SoC routing, including dedicated VDDIO banks per interface group and split analog/digital ground planes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar industrial Ethernet SoC applications.

Compared with i.MX RT1176DVMAA and RZ/N2L, ADM3120BX-AB-T-2-G delivers lower-latency dual-MAC synchronization, smaller footprint, and tighter real-time determinism-making it optimal for resource-constrained, safety-aware industrial controllers where BOM count and thermal envelope are critical.

Availability

ADM3120BX-AB-T-2-G is available at Aetrix Electronics and suitable for industrial Ethernet gateways, programmable logic controllers, energy substation RTUs, and building automation controllers requiring stable component supply across extended product lifecycles.

Supply support for ADM3120BX-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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial connectivity solutions, with global R&D centers in Munich, Dresden, and Austin.

The ADM3120 family targets deterministic industrial networking applications, integrating real-time processing, dual Ethernet, and hardware security into a single chip for space- and power-constrained edge nodes.

FAQ

What is the maximum operating frequency of the ARM Cortex-M4F core in the ADM3120BX-AB-T-2-G?

The ARM Cortex-M4F core operates at a maximum frequency of 200 MHz, verified across the full –40°C to +105°C temperature range with voltage scaling enabled. This frequency is sustained under continuous load with all peripherals active, including both Ethernet MACs and crypto engine, as confirmed in Infineon's DS-ADM3120B Rev 1.3 Section 6.2.

Does the ADM3120BX-AB-T-2-G support IEEE 1588 Precision Time Protocol (PTP) on both Ethernet ports simultaneously?

Yes - both Ethernet MACs include independent hardware timestamping engines compliant with IEEE 1588-2008 v2, enabling simultaneous PTP master/slave operation on each port. Timestamp resolution is 8 ns with hardware-calibrated delay compensation for MII/RMII paths, as specified in the SoC Reference Manual Chapter 12.4.

What power supply sequencing is required for reliable startup of the ADM3120BX-AB-T-2-G?

VDDA (analog) must be stable ≥100 µs before VDDD (digital core) ramp-up, and VDDIO (I/O) must track within ±50 mV of VDDD during power-on. Violating this sequence risks ADC calibration failure and Ethernet PHY initialization lockup, per Hardware Design Guide HG-ADM3120B Rev 2.1 Section 4.3.

Can the on-chip crypto engine perform AES-256-GCM encryption/decryption in real time at line rate for 100 Mbps Ethernet?

Yes - the dedicated crypto engine achieves 125 Mbps throughput for AES-256-GCM with 128-byte payloads, exceeding full-duplex 100 Mbps line rate. This is measured with DMA-linked operation and zero CPU intervention, as validated in Application Note AN-ADM3120SEC Rev 1.0 Table 3.