NXP Semiconductors LX2120CA72232B

Overview

LX2120CA72232B from NXP is a 12-core Arm Cortex-A72 network processor with 6 MB L2 cache, dual 72-bit DDR4-3200 controllers with ECC, and integrated DPAA2 datapath acceleration delivering up to 50 Gbps crypto and 100 Gbps compression throughput. It serves as the central control and packet-processing engine in high-throughput networking equipment including 5G baseband units and enterprise edge routers.

For engineers reviewing the LX2120CA72232B datasheet, LX2120CA72232B pinout, LX2120CA72232B application, or LX2120CA72232B equivalent, key selection criteria include its 12-core A72 cluster frequency (up to 2.2 GHz), 24 SerDes lanes supporting 25 Gbps per lane, IEEE 1588-aware multi-gigabit Ethernet MAC count (up to 18), and hardware virtualization support via Arm MMU-500.

Technical Context

The LX2120CA72232B implements a cache-coherent interconnect fabric operating at up to 1500 MHz, backed by 8 MB Level 3 cache with ECC and On-Chip Memory (OCM) mode. Its Datapath Acceleration Architecture 2.0 (DPAA2) integrates WRIOP for packet parsing/classification, QDMA for zero-copy transfers, and dedicated SEC and DCE engines.

It supports heterogeneous interface concurrency: two PCIe Gen3 x8 controllers with SR-IOV, four PCIe Gen3 x4 controllers, four SATA 3.0 ports, dual USB 3.0 + PHY, dual CAN-FD, eight I²C, four UARTs, and FlexSPI - all managed under unified QorIQ platform trust architecture 3.0 with 256 KB secure on-chip RAM.

Key Specifications

Pinout & Package

The LX2120CA72232B is housed in a 1517-ball Fine-Pitch Ceramic Ball Grid Array (FC-PBGA) package with 0.8 mm ball pitch and 37 mm × 37 mm body size, optimized for high-density server and telecom board layouts with controlled impedance routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multicore network processor applications.

Compared with LX2160A, LX2120CA72232B trades 4 cores and 2 MB L2 for lower power and identical DPAA2 acceleration, while LX2080A further reduces SerDes and PCIe scalability to meet entry-level edge gateway needs.

Availability

LX2120CA72232B is available at Aetrix Electronics and suitable for 5G infrastructure, enterprise SD-WAN appliances, and industrial TSN switch designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from NXP's qualified production lots.

Supply support for LX2120CA72232B 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and networking markets, with deep expertise in Arm-based processing and hardware-accelerated datapaths.

The LX2120CA72232B belongs to NXP's Layerscape LX series, designed specifically for scalable, software-defined networking infrastructure where deterministic packet processing, hardware security, and multi-gigabit I/O concurrency are mandatory.

FAQ

What is the maximum DDR4 speed supported by the LX2120CA72232B?

The LX2120CA72232B supports DDR4 SDRAM at up to 3.2 GT/s across two independent 72-bit channels (64-bit data + 8-bit ECC). This translates to a theoretical peak bandwidth of 51.2 GB/s per channel, validated under JEDEC DDR4-3200 specifications with on-die termination and write leveling calibration sequences implemented in the LX2120CA72232B's DDR PHY.

Does the LX2120CA72232B support PCIe Gen4?

No, the LX2120CA72232B supports only PCIe Gen3 - with two x8 controllers and four x4 controllers. Its SerDes lanes are rated for up to 25 Gbps, which aligns with PCIe Gen3 (8 GT/s) and higher-speed protocols like 25G Ethernet and SATA 3.2, but not PCIe Gen4 (16 GT/s). The reference design and timing models in the LX2120CA72232B datasheet do not include Gen4 compliance testing or equalization settings.

How many CAN-FD interfaces does the LX2120CA72232B integrate?

The LX2120CA72232B integrates two Controller Area Network (CAN) modules, both supporting CAN Flexible Data Rate (CAN-FD) per ISO 11898-1:2015. Each module includes dedicated message RAM, bit-rate switching logic, and error confinement circuitry - enabling simultaneous operation at up to 5 Mbps data phase and 1 Mbps arbitration phase without CPU intervention.

Is hardware virtualization support built into the LX2120CA72232B?

Yes, the LX2120CA72232B includes Arm MMU-500 for hardware-enforced memory virtualization and partitioning. This allows simultaneous execution of multiple OS instances (e.g., Linux for control plane and FreeRTOS for real-time packet forwarding) with strict isolation of memory regions, interrupt vectors, and peripheral access - verified in NXP's QorIQ SDK v3.x hypervisor reference implementation.

What is the package type and ball count of the LX2120CA72232B?

The LX2120CA72232B uses a 1517-ball Fine-Pitch Ceramic Ball Grid Array (FC-PBGA) package with 0.8 mm ball pitch and 37 mm × 37 mm body dimensions. Pin assignments follow the standardized LX21xxA BGA map documented in Section 2 of the NXP Layerscape LX2160A/LX2120A/LX2080A Data Sheet Rev. 3, including dedicated DDR, SerDes, PCIe, and debug signal groupings.