NXP Semiconductors LS2084AXN7V17B

Overview

LS2084AXN7V17B from NXP Semiconductors is an 8-core Arm® Cortex®-A72 SoC with dual 64-bit DDR4 memory controllers (up to 2.1 GT/s), DPAA2 hardware acceleration (20 Gbps crypto, 10 Gbps RegEx), and 16 SerDes lanes (up to 10.3125 GHz), deployed in vehicle management servers and ADAS gateways requiring deterministic real-time packet processing.

For engineers reviewing the LS2084AXN7V17B datasheet, LS2084AXN7V17B pinout, LS2084AXN7V17B application, or LS2084AXN7V17B equivalent, key selection criteria include automotive AEC-Q100 Grade 3 qualification (105°C Tj), hardware virtualization support, TrustZone®-enabled secure boot, and DPAA2 offload capability for L2/L3 forwarding and encryption.

Technical Context

The LS2084AXN7V17B implements a hierarchical interconnect fabric linking eight Cortex-A72 cores (organized in four dual-core clusters, each with 1 MB shared L2 cache) to DPAA2 accelerators-including WRIOP for wire-rate packet parsing, QBMan for hardware queue management, SEC 5.2 for cryptography, PME 2.0 for RegEx, and DCE 1.0 for compression/decompression.

It integrates two DDR4 SDRAM controllers with ECC and interleaving, four PCIe 3.0 controllers (one supporting SR-IOV at x8/x4/x2/x1, three at x4/x2/x1), eight 10 Gbps Ethernet MACs, and a service processor enabling pre-boot initialization and secure-boot enforcement via TrustZone® and hardware fuses.

Key Specifications

Pinout & Package

LS2084AXN7V17B uses a 1292-ball FC-PBGA package (35 mm × 35 mm, 0.8 mm pitch) with dedicated DDR4, SerDes, PCIe, Ethernet, and peripheral interface ball groups. Power delivery includes multiple VDD/GND domains (G1VDD, SVDD, XVDD, AVDD) and thermal sensing pins (TA_BB_TMP_DETECT_B, TH_TPA).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance networking SoC applications.

Compared with LS2044AXN7V17B, LS2084AXN7V17B doubles core count and platform cache bandwidth for higher control-plane throughput; compared with LS1046AXE7V17B, it adds DPAA2, AEC-Q100 Grade 3, and doubled SerDes lanes-enabling automotive and 5G infrastructure use cases unreachable with the older architecture.

Availability

LS2084AXN7V17B is available at Aetrix Electronics and suitable for automotive gateway systems, 5G small cell baseband units, and ruggedized military communications equipment requiring stable component supply across extended product lifecycles.

Supply support for LS2084AXN7V17B 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, and IoT markets, with deep expertise in Arm-based SoCs and hardware security.

The QorIQ LS2084A family targets high-reliability networking and automotive applications demanding integrated control, data-path acceleration, and functional safety-designed to replace multi-chip solutions with single-die consolidation.

FAQ

What is the maximum DDR4 data rate supported by LS2084AXN7V17B?

The LS2084AXN7V17B supports DDR4 data rates up to 2.1 GT/s in standard operation. Under AEC-Q100 Grade 3 conditions (105°C Tj), the maximum DDR4 data rate is reduced to 1.8 GT/s to ensure timing margin and reliability across the automotive temperature range.

Does LS2084AXN7V17B support PCIe Gen4?

No, LS2084AXN7V17B supports PCIe 3.0 only. Its four PCIe controllers operate at Gen3 speeds (8 GT/s), with PCIe3 capable of x8/x4/x2/x1 configurations and SR-IOV, while the other three support x4/x2/x1 only. Gen4 capability is not implemented in this SoC.

How does the DPAA2 architecture in LS2084AXN7V17B improve packet processing efficiency?

The DPAA2 in LS2084AXN7V17B offloads packet parsing, classification, scheduling, crypto, RegEx, and compression from the CPU cores. This reduces software overhead, enables wire-rate 10 Gbps Ethernet forwarding, and frees up all eight Cortex-A72 cores for application-layer tasks like routing protocols or AI inference.

Is LS2084AXN7V17B pin-compatible with LS2044AXN7V17B?

Yes, LS2084AXN7V17B and LS2044AXN7V17B share identical 1292-ball FC-PBGA packaging, pinout, power delivery scheme, and thermal pad layout. The two devices are mechanically and electrically compatible, allowing drop-in replacement where software and thermal design accommodate the higher core count.

What security features are implemented in LS2084AXN7V17B beyond TrustZone®?

LS2084AXN7V17B includes a dedicated service processor (SP) for pre-boot initialization, hardware-enforced secure boot using immutable fuses, runtime tamper detection via voltage/temperature monitors, and cryptographic acceleration (SEC 5.2) with key isolation. These features collectively establish a hardware-rooted chain of trust independent of the main application cores.