NXP Semiconductors LS1043ASN8KQB

Overview

LS1043ASN8KQB 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 SEC 5.4 security engine. It delivers up to 10 Gb/s packet processing for branch office routers, vCPE, and industrial PLCs using fanless thermal design and DDR3L/DDR4 memory support.

For engineers reviewing the LS1043ASN8KQB datasheet, LS1043ASN8KQB pinout, LS1043ASN8KQB application, or LS1043ASN8KQB equivalent, key selection factors include its 4×1.6 GHz CPU cores, hardware-accelerated IPsec via SEC 5.4, Frame Manager–based Ethernet offload, PCIe Gen2 ×3, USB 3.0 ×3, and QUICC Engine support for legacy TDM/HDLC/PROFIBUS protocols.

Technical Context

The LS1043ASN8KQB implements four ARM Cortex-A53 64-bit cores operating at up to 1.6 GHz, interconnected via CoreLink CCI-400 with SMMU for virtualization-aware I/O memory management. Its DPAA includes Frame Manager, Queue Manager, and Buffer Manager for hardware-accelerated packet parsing, classification, and distribution.

Networking is enabled by a 4-lane 10 GHz SerDes supporting up to 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. Legacy protocol support is provided by the uQE (micro QUICC Engine) for glueless HDLC, TDM, and PROFIBUS.

Key Specifications

Pinout & Package

LS1043ASN8KQB is housed in a 23 mm × 23 mm, 780-pin FC-BGA package (RoHS-compliant, Pb-free). Pin assignment follows the LS1043A Reference Manual Rev.6, with dedicated ball groups for DDR3L/4, SerDes lanes, PCIe, USB, uQE, and system management interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1043ASN8KQB, the LS1023ASN7KQB reduces core count and removes uQE to cut cost and power, while the Armada 7040 trades protocol flexibility for raw CPU and 10GbE bandwidth-making LS1043ASN8KQB optimal for mixed-protocol, security-intensive edge infrastructure.

Availability

LS1043ASN8KQB is available at Aetrix Electronics and suitable for branch office routers, vCPE platforms, and industrial IoT gateways requiring stable component supply, long-term lifecycle assurance, and qualified industrial temperature grade (-40°C to +105°C).

Supply support for LS1043ASN8KQB 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 LS1043ASN8KQB belongs to the QorIQ Layerscape family, designed specifically for embedded networking and industrial infrastructure where deterministic packet processing, hardware-accelerated security, and legacy protocol compatibility are mandatory.

FAQ

What is the maximum operating frequency of the LS1043ASN8KQB?

The LS1043ASN8KQB features four ARM Cortex-A53 64-bit cores rated for operation up to 1.6 GHz. This frequency is guaranteed across the full industrial temperature range (-40°C to +105°C) and supported by the on-chip dynamic voltage and frequency scaling (DVFS) controller. The LS1043ASN8KQB maintains this speed under sustained load when paired with adequate thermal design and DDR4 memory bandwidth.

Does the LS1043ASN8KQB support DDR4 memory?

Yes, the LS1043ASN8KQB integrates a 32-bit DDR3L/DDR4 memory controller supporting DDR4-2133 (1066 MHz) and DDR3L-1866. It is the first in its QorIQ value-tier line to support DDR4, enabling higher bandwidth and lower power per bit than DDR3L-critical for memory-intensive vCPE and security appliance workloads. Configuration is done via RCW and validated in the LS1043A SDK.

What networking interfaces are integrated into the LS1043ASN8KQB?

The LS1043ASN8KQB integrates a 4-lane 10 GHz multi-protocol SerDes supporting up to six Gigabit Ethernet ports (with IEEE 1588), three PCIe Gen2 interfaces, one SATA 3.0 port, and three USB 3.0 controllers with integrated PHY. Additional interfaces include QuadSPI, IFC (for NAND/NOR), SD/eMMC, and four I²C/SPI controllers-all accessible without external transceivers or bridges.

How does the LS1043ASN8KQB handle legacy industrial protocols like PROFIBUS and HDLC?

The LS1043ASN8KQB includes a dedicated micro QUICC Engine (uQE) that provides native, glueless support for PROFIBUS, HDLC, and TDM protocols. Unlike software-emulated solutions, the uQE executes protocol framing and timing in hardware with sub-microsecond jitter, eliminating the need for external ASICs or FPGAs in industrial gateways and PLC controllers.

Is hardware virtualization supported on the LS1043ASN8KQB?

Yes, the LS1043ASN8KQB supports hardware-assisted virtualization through ARM CoreLink CCI-400 and integrated SMMU (System Memory Management Unit). This enables memory isolation, device assignment, and interrupt remapping across multiple VMs-validated with Linux KVM and Wind River Helix Virtualization Platform. The LS1043ASN8KQB uses this capability to run secure, partitioned vCPE workloads with strict resource guarantees.