NXP Semiconductors LX2160XE72029B

Overview

LX2160XE72029B from NXP is a 16-core Arm Cortex-A72 network processor operating up to 2.2 GHz, featuring dual 72-bit DDR4 memory controllers with ECC, 24 SerDes lanes supporting up to 25 Gbps, and integrated DPAA2 datapath acceleration delivering 50 Gbps crypto and 100 Gbps compression throughput. It serves as the central control and packet processing engine in high-end networking equipment including 100G routers and telecom infrastructure.

For engineers reviewing the LX2160XE72029B datasheet, LX2160XE72029B pinout, LX2160XE72029B application, or LX2160XE72029B equivalent, key selection criteria include DDR4 ECC controller bandwidth, SerDes lane count and speed grade, DPAA2 acceleration capacity (SEC/DCE), IEEE 1588 timing precision, and PCIe Gen3 x8/x4 configuration flexibility.

Technical Context

The LX2160XE72029B implements a cache-coherent interconnect fabric running at up to 1500 MHz with 8 MB L3 cache and ECC-protected on-chip memory mode. Its 16 Cortex-A72 cores each feature 48 KB L1 instruction and 32 KB L1 data caches, backed by shared 8 MB L2 cache across all cores.

DPAA2 architecture provides hardware-accelerated packet parsing, classification, queue management, and switching (114 Gbps L2), alongside dedicated SEC (50 Gbps) and DCE (100 Gbps) engines. Ethernet support spans 1G to 100G via USXGMII, CAUI-4, 50GAUI-2, and XLAUI interfaces with full IEEE 1588 timestamping.

Key Specifications

Pinout & Package

The LX2160XE72029B is housed in a 1517-ball FC-PBGA package with 1.0 mm ball pitch, designed for high-density routing and thermal dissipation in carrier-grade systems. Pin assignments are organized into functional groups including DDR1/DDR2, SerDes banks (Serdes1–Serdes3), Ethernet MI, USB PHY, EC1/EC2, I²C, SPI, UART, JTAG, and power/ground nets.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LX2120A and LX2080A, the LX2160XE72029B delivers highest aggregate throughput via 16 cores, dual DDR4 channels, and 24 SerDes lanes - making it optimal for 100G+ control-and-forwarding convergence where both compute density and I/O bandwidth are limiting factors.

Availability

LX2160XE72029B is available at Aetrix Electronics and suitable for 5G infrastructure, telecom edge routing, industrial TSN gateways, and secure NFV platforms requiring stable component supply and long-term roadmap alignment.

Supply support for LX2160XE72029B 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 specializing in secure connectivity solutions for automotive, industrial, IoT, and networking markets, with deep expertise in Arm-based SoCs and trusted execution technologies.

The LX2160XE72029B belongs to NXP's Layerscape LX series - a family of software-aware, core-agnostic network processors designed specifically for scalable, high-performance data path acceleration in next-generation wired and wireless infrastructure.

FAQ

What is the maximum DDR4 data rate supported by the LX2160XE72029B?

The LX2160XE72029B supports DDR4 SDRAM at 3.2 GT/s across two independent 72-bit channels (64-bit data + 8-bit ECC). This enables theoretical peak bandwidth of ~51.2 GB/s per channel, validated under JEDEC-compliant timing and voltage conditions specified in the official NXP datasheet Rev. 3 (09/2021).

Does the LX2160XE72029B support IEEE 1588 Precision Time Protocol in hardware?

Yes, the LX2160XE72029B integrates IEEE 1588 timestamping logic directly into all 18 Ethernet MACs. Hardware timestamping occurs at the PHY interface boundary with sub-ns resolution, enabling transparent clock correction and master/slave synchronization without CPU intervention - essential for TSN and 5G fronthaul timing.

How many PCIe Gen3 lanes does the LX2160XE72029B provide, and what configurations are supported?

The LX2160XE72029B provides two PCIe Gen3 x8 controllers and four PCIe Gen3 x4 controllers, totaling 32 lanes. Configurations include bifurcation (e.g., x8 → x4+x4), SR-IOV for virtualized endpoint sharing, and root complex or endpoint mode - all programmable via RCW and SerDes register settings per NXP AN5437.

Is the LX2160XE72029B pin-compatible with other Layerscape LX processors like LX2120A or LX2080A?

No, the LX2160XE72029B is not pin-compatible with LX2120A or LX2080A. Although all three share the same 1517-ball FC-PBGA package footprint, ball function mapping differs significantly - especially for DDR, SerDes, and PCIe signals - requiring unique PCB layouts for each variant.

What security features are implemented in the LX2160XE72029B for secure boot and runtime protection?

The LX2160XE72029B implements QorIQ Platform Trust Architecture 3.0, including immutable ROM-based boot ROM, SHA-256/ECDSA signature verification, 256 KB on-chip secure RAM, battery-backed tamper detection, and Arm TrustZone with MMU-500 IOMMU for peripheral and memory isolation - all enforced before first instruction fetch.