NXP Semiconductors LS1043ASN7PQB

Overview

LS1043ASN7PQB from NXP Semiconductors is a quad-core 64-bit ARM Cortex-A53 communications processor with 1 MB L2 cache, integrated Data Path Acceleration Architecture (DPAA), and support for up to six Gigabit Ethernet ports with IEEE 1588 timing-designed for vCPE, industrial PLCs, and multi-protocol IoT gateways.

For engineers reviewing the LS1043ASN7PQB datasheet, LS1043ASN7PQB pinout, LS1043ASN7PQB application, or LS1043ASN7PQB equivalent, key selection criteria include DDR3L/DDR4 memory controller compatibility, SEC 5.4 cryptographic acceleration, CoreLink CCI-400 coherency fabric, and SerDes-based interface flexibility including PCIe Gen2, USB 3.0, and SATA 3.0.

Technical Context

The LS1043ASN7PQB implements four ARM Cortex-A53 cores at up to 1.6 GHz with 32 KB I-Cache and 32 KB D-Cache per core, backed by a unified 1 MB L2 cache and CoreLink CCI-400 interconnect supporting SMMU-based I/O virtualization. It integrates DPAA for hardware-accelerated packet parsing, classification, and distribution alongside Frame Manager and SEC 5.4 for inline IPsec processing.

Its 4-lane 10 GHz multi-protocol SerDes supports six Gigabit Ethernet ports (with IEEE 1588), three PCIe Gen2 interfaces, one SATA 3.0 port, and triple USB 3.0 controllers with integrated PHY-enabling fanless, low-BOM industrial and edge networking designs without external clock buffers or complex power sequencing.

Key Specifications

Pinout & Package

LS1043ASN7PQB is housed in a 23 mm × 23 mm, 780-pin FC-BGA package (RoHS-compliant, Pb-free). Pin definitions are defined by the LS1043A Reference Manual (Document Number: LS1043ARM, Rev. 6) and validated against NXP's official LS1043ASN7PQB datasheet and package drawing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1023ASN7PQB and Marvell Armada 7040, the LS1043ASN7PQB uniquely balances 10 Gb/s DPAA-accelerated throughput, SEC 5.4 full-suite cryptography, and QUICC Engine legacy protocol support-making it the only option for secure, fanless, multi-protocol industrial edge gateways requiring both real-time determinism and cloud connectivity.

Availability

LS1043ASN7PQB is available at Aetrix Electronics and suitable for vCPE platforms, industrial PLC gateways, and multi-protocol IoT edge nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized NXP channels.

Supply support for LS1043ASN7PQB 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 IoT markets, with deep expertise in ARM-based communications processors and trusted execution environments.

The LS1043ASN7PQB belongs to the QorIQ LS series-a family of ARM-based communications processors engineered specifically for enterprise edge, industrial infrastructure, and embedded networking applications demanding high throughput, low power, and hardware-enforced security.

FAQ

What is the maximum operating frequency of the LS1043ASN7PQB?

The LS1043ASN7PQB operates at up to 1.6 GHz per ARM Cortex-A53 core. This frequency is guaranteed under specified thermal and voltage conditions per the LS1043A datasheet (Rev. 6), and is maintained across all four cores simultaneously during sustained workloads when adequate cooling and 1.0 V ±3% core supply are provided.

Does the LS1043ASN7PQB support DDR4 memory?

Yes, the LS1043ASN7PQB supports both DDR3L and DDR4 memory via its integrated 32-bit memory controller. DDR4 support begins at 1600 MT/s and enables higher bandwidth and lower active power than DDR3L-critical for extending platform longevity in vCPE and industrial gateway designs.

Is the LS1043ASN7PQB pin-compatible with the LS1023ASN7PQB?

No, the LS1043ASN7PQB is not pin-compatible with the LS1023ASN7PQB. Although both use 780-pin FC-BGA packages, their ball maps differ significantly due to additional SerDes lanes, PCIe interfaces, and QUICC Engine signals in the LS1043ASN7PQB-requiring unique PCB layout and power delivery design.

What security features does the LS1043ASN7PQB include beyond SEC 5.4?

In addition to SEC 5.4, the LS1043ASN7PQB includes TrustZone-enabled Secure Boot with immutable ROM-based validation, hardware root-of-trust, and SMMU-enforced memory isolation. These features collectively ensure firmware integrity, secure peripheral access, and VM-level separation-essential for certified industrial and carrier-grade deployments of the LS1043ASN7PQB.

Can the LS1043ASN7PQB operate in fanless industrial environments?

Yes, the LS1043ASN7PQB is qualified for fanless operation with total system power as low as 5 W. Its thermal design power (TDP) profile, combined with DDR3L support, DVFS, and integrated power gating, enables deployment in sealed, convection-cooled enclosures rated for -40°C to +85°C industrial temperature range.