NXP Semiconductors LS1043ASN7MQB

Overview

LS1043ASN7MQB from NXP Semiconductors is a quad-core 64-bit ARM Cortex-A53 communications processor targeting enterprise edge, industrial control, and networking applications. It delivers up to 10 Gb/s packet processing with integrated Frame Manager, DPAA offload engines, and SEC 5.4 security engine, operating at up to 1.6 GHz per core with 1 MB L2 cache and DDR4/DDR3L memory support.

For engineers reviewing the LS1043ASN7MQB datasheet, LS1043ASN7MQB pinout, LS1043ASN7MQB application, or LS1043ASN7MQB equivalent, key selection criteria include SerDes lane configuration (4-lane 10 GHz), PCIe Gen2 ×3, USB 3.0 ×3, IEEE 1588-capable Gigabit Ethernet ×6, and hardware virtualization support via CoreLink CCI-400 and SMMU.

Technical Context

The LS1043ASN7MQB implements four ARM Cortex-A53 64-bit cores with an eight-stage pipeline and 32 KB I-Cache/32 KB D-Cache per core, backed by a unified 1 MB L2 cache. Its CoreLink CCI-400 interconnect enables cache coherency across CPU cores and accelerators while integrating SMMU for I/O memory management in virtualized environments.

Networking is handled by a hardware-accelerated Frame Manager supporting parsing, classification, policing, and IP reassembly, tightly coupled with DPAA 2.0 offload engines and SEC 5.4 for inline IPsec, SSL/TLS, DTLS, and IKE. The 4-lane 10 GHz multi-protocol SerDes supports configurable protocols including SGMII, XFI, SATA 3.0, and PCIe Gen2.

Key Specifications

Pinout & Package

LS1043ASN7MQB is housed in a 23 mm × 23 mm, 621-pin FC-BGA package (RoHS-compliant, Pb-free). Pin assignment follows the LS1043A Reference Manual Rev. 6, with dedicated SerDes banks, DDR4/DDR3L interface groups, and isolated power domains for CPU, I/O, and SerDes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1023ASN7QQB and i.MX8M Plus, the LS1043ASN7MQB uniquely combines quad-core ARM64 compute, hardware-accelerated packet processing, and legacy industrial protocol support-making it irreplaceable for fanless, high-throughput, multi-protocol edge infrastructure requiring deterministic latency and secure virtualization.

Availability

LS1043ASN7MQB is available at Aetrix Electronics and suitable for branch office routers, industrial PLC controllers, and vCPE gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.

Supply support for LS1043ASN7MQB 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 networking IP.

The LS1043ASN7MQB belongs to NXP's QorIQ Layerscape family-designed specifically for embedded networking and industrial infrastructure applications demanding high packet throughput, hardware offload, and long product lifecycles.

FAQ

What is the maximum operating frequency of the LS1043ASN7MQB?

The LS1043ASN7MQB operates at up to 1.6 GHz per ARM Cortex-A53 core under thermal and voltage specifications defined in the LS1043A Data Sheet Rev. 6. Frequency scaling is managed via dynamic voltage and frequency scaling (DVFS) controlled by the ARM generic timer and PMU, with guaranteed operation across commercial (0°C to 105°C) temperature range.

Does the LS1043ASN7MQB support DDR4 memory?

Yes, the LS1043ASN7MQB integrates a 32-bit DDR4/DDR3L memory controller supporting DDR4-2400 and DDR3L-1866 data rates with on-die termination calibration and JEDEC-compliant command/address timing. DDR4 support enables higher bandwidth and lower voltage (1.2 V) compared to DDR3L, improving power efficiency in fanless designs.

How many PCIe Gen2 interfaces does the LS1043ASN7MQB provide?

The LS1043ASN7MQB provides three PCIe Gen2 interfaces routed through its 4-lane 10 GHz SerDes. Each interface operates at 5 GT/s with full x1 or x2 lane configurations, supporting endpoint or root complex roles. All three PCIe controllers include MSI-X, AER, and ACS compliance for robust virtualized I/O sharing.

Is the LS1043ASN7MQB pin-compatible with the LS1023ASN7QQB?

No, the LS1043ASN7MQB and LS1023ASN7QQB share the same 621-pin FC-BGA package footprint and ball map, but differ in power delivery requirements, SerDes lane assignments, and thermal pad layout. While PCB reuse is possible with minor redesign, they are not drop-in replacements due to differences in VDD_DDR voltage tolerance and PCIe reference clock routing.

What security features are integrated into the LS1043ASN7MQB?

The LS1043ASN7MQB integrates SEC 5.4 for cryptographic acceleration (AES-GCM, SHA-2, RSA-4096), TrustZone-enabled secure world execution, immutable ROM-based secure boot with eFuses, and SMMU-based I/O memory protection. These features collectively enable FIPS 140-2 Level 3–ready implementations for IPsec, TLS, and secure firmware updates without external security elements.