NXP Semiconductors LS2084ASN7QQB

Overview

LS2084ASN7QQB from NXP Semiconductors is a high-performance 64-bit Arm Cortex-A72-based network processor with eight A72 cores (four dual-core clusters), 1 MB platform cache with ECC, dual 64-bit DDR4 memory controllers (up to 2.1 GT/s), and DPAA2 hardware acceleration for networking workloads. It serves as the control and data-path engine in carrier-grade routers, 5G wireless infrastructure baseband units, and vehicle management servers.

For engineers reviewing the LS2084ASN7QQB datasheet, LS2084ASN7QQB pinout, LS2084ASN7QQB application, or LS2084ASN7QQB equivalent, key selection criteria include its 16-lane SerDes support (up to 10.3125 GHz), eight 10 GbE MACs, PCIe 3.0 x8/x4/x2/x1 capability with SR-IOV on one controller, automotive AEC-Q100 Grade 3 qualification (105°C Tj), and integrated TrustZone security architecture.

Technical Context

The LS2084ASN7QQB implements a hierarchical interconnect fabric linking eight Cortex-A72 cores, dual DDR4 controllers, DPAA2 accelerators (WRIOP, QBMan, SEC 5.2, PME 2.0, DCE 1.0), qDMA, and multiple high-speed I/O. Its cache coherency model supports L1/L2/Platform Cache hierarchy with ECC protection across all levels.

DPAA2 offloads packet processing at wire rate: WRIOP handles parsing/classification/distribution; QBMan manages queues, scheduling, and hardware buffer allocation; SEC 5.2 delivers up to 20 Gbps crypto throughput; PME 2.0 enables 10 Gbps RegEx matching; DCE 1.0 provides 20 Gbps compression/decompression.

Key Specifications

Pinout & Package

LS2084ASN7QQB is housed in a 1292-ball FC-PBGA package (35 mm × 35 mm, 0.8 mm pitch) with thermal lid and enhanced signal integrity for high-speed SerDes and DDR4 routing. Ball mapping follows JEDEC MO-270AB standard with dedicated power/ground banks, DDR4 interface groups (D1/D2), SerDes banks (SD1/SD2), and I/O banks segmented by voltage domain (G1VDD, SVDD, XVDD, AVDD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS2044ASN7QQB, LS2084ASN7QQB delivers 2× CPU core count and higher DDR4 bandwidth for control-plane scaling; compared with LS1046ASN7QQB, it adds DPAA2, dual DDR4, and AEC-Q100 support-enabling next-generation 5G and automotive use cases that demand hardware-accelerated data paths and functional safety compliance.

Availability

LS2084ASN7QQB is available at Aetrix Electronics and suitable for 5G infrastructure, automotive domain controllers, and carrier-edge routing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LS2084ASN7QQB 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 communications markets, with deep expertise in Arm-based SoCs and trusted execution environments.

The QorIQ LS2084A product line targets high-end networking and telecom infrastructure, delivering integrated control and data-path processing with hardware acceleration to replace multi-chip solutions in space- and power-constrained systems.

FAQ

What is the maximum DDR4 data rate supported by LS2084ASN7QQB?

LS2084ASN7QQB supports up to 2.1 GT/s DDR4 data rate on both memory controllers under standard operating conditions. In AEC-Q100 Grade 3 automotive mode, the maximum DDR4 data rate is reduced to 1.8 GT/s to meet thermal and reliability requirements at 105°C junction temperature. This is specified in Section 3.8 of the LS2084A Data Sheet Rev. 4.

Does LS2084ASN7QQB support PCIe Gen4?

No, LS2084ASN7QQB supports PCIe 3.0 only. The datasheet explicitly states "Four PCIe 3.0 controllers" with no mention of Gen4 capability. One controller (PCIe3) supports x8/x4/x2/x1 widths and SR-IOV; the other three support x4/x2/x1 only. Gen4 signaling is not implemented in the SerDes PHY or protocol stack of LS2084ASN7QQB.

Is LS2084ASN7QQB pin-compatible with LS2044ASN7QQB?

Yes, LS2084ASN7QQB and LS2044ASN7QQB share identical 1292-ball FC-PBGA packaging, pinout, and mechanical footprint. They are designed for drop-in replacement at the PCB level, differing only in internal core count and power/performance binning-enabling scalable platform design across performance tiers without layout changes.

What security features does LS2084ASN7QQB provide beyond TrustZone?

LS2084ASN7QQB integrates a dedicated service processor (SP) for pre-boot initialization and secure boot enforcement, hardware-based key storage in security fuses, battery-backed security monitor interface, and runtime tamper detection via analog pins (TA_BB_TMP_DETECT_B). These features complement TrustZone by establishing a root of trust before Cortex-A72 execution begins.

Can LS2084ASN7QQB operate in a non-automotive environment using its AEC-Q100 qualification?

Yes, LS2084ASN7QQB's AEC-Q100 Grade 3 qualification (105°C Tj) certifies robustness under extended temperature and stress conditions, making it suitable for harsh industrial, outdoor telecom, and military/aerospace deployments-even when automotive use is not required. Its qualification adds margin for reliability in demanding thermal environments.