NXP Semiconductors LS1043ASN7QQB

Overview

LS1043ASN7QQB from NXP Semiconductors is a quad-core 64-bit ARM Cortex-A53 communications processor with 1 MB L2 cache, integrated Frame Manager, DPAA 2.0 acceleration, and SEC 5.4 security engine, deployed in vCPE, industrial PLCs, and multi-protocol IoT gateways.

For engineers reviewing the LS1043ASN7QQB datasheet, LS1043ASN7QQB pinout, LS1043ASN7QQB application, or LS1043ASN7QQB equivalent, key selection criteria include DDR3L/DDR4 memory support, 6× Gigabit Ethernet with IEEE 1588, PCIe Gen2 ×3, USB 3.0 ×3, and hardware virtualization via SMMU and CoreLink CCI-400.

Technical Context

The LS1043ASN7QQB implements four ARM Cortex-A53 cores at up to 1.6 GHz, backed by a unified 1 MB L2 cache and CoreLink CCI-400 coherent interconnect with SMMU for I/O memory management in virtualized environments. It integrates DPAA 2.0 accelerators including Frame Manager for packet parsing/classification and Queue Manager for workload distribution.

Networking is enabled through a 4-lane 10 GHz SerDes supporting up to six 1 GbE ports (with IEEE 1588), three PCIe Gen2 interfaces, one SATA 3.0 port, and triple USB 3.0 controllers with integrated PHY. Security processing is handled by SEC 5.4 supporting IPsec, SSL/TLS, DTLS, IKE, and XOR acceleration for RAID 5.

Key Specifications

Pinout & Package

LS1043ASN7QQB is housed in a 23x23 mm, 621-pin FC-BGA package (RoHS-compliant, Pb-free). Pin mapping is defined in the LS1043AFS REV 6 reference schematic and ball-out diagram.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1043ASN7QQB, the LS1023ASN7QQB offers lower power and cost for simpler edge tasks, while the Armada 7040 trades protocol flexibility for higher compute density-making LS1043ASN7QQB uniquely balanced for hybrid industrial-networking workloads.

Availability

LS1043ASN7QQB is available at Aetrix Electronics and suitable for vCPE deployment, industrial PLC development, and multi-protocol IoT gateway production requiring stable component supply across extended lifecycle windows.

Supply support for LS1043ASN7QQB 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.

The LS1043A series was designed specifically for fanless, small-form-factor networking and industrial infrastructure applications-emphasizing BOM optimization, hardware-accelerated packet processing, and legacy protocol compatibility via QUICC Engine.

FAQ

What is the maximum operating frequency of the LS1043ASN7QQB?

The LS1043ASN7QQB operates at up to 1.6 GHz per core. This frequency is guaranteed across the commercial temperature range (0°C to 105°C) under specified voltage and cooling conditions, and is validated in the LS1043AFS REV 6 datasheet. The LS1043ASN7QQB uses dynamic voltage and frequency scaling (DVFS) to maintain thermal compliance in fanless designs.

Does the LS1043ASN7QQB support DDR4 memory?

Yes, the LS1043ASN7QQB supports both DDR3L and DDR4 memory interfaces via its 32-bit memory controller. DDR4 operation is validated up to 2400 MT/s and enables lower power consumption and higher density compared to DDR3L-critical for space-constrained industrial gateways. The LS1043ASN7QQB's memory controller includes on-die termination and configurable timing parameters for robust signal integrity.

How many Gigabit Ethernet interfaces does the LS1043ASN7QQB support?

The LS1043ASN7QQB supports up to six Gigabit Ethernet interfaces using RGMII or SGMII PHYs, all managed by the integrated Frame Manager. Each port supports IEEE 1588-2008 precision time protocol for synchronized industrial control. The LS1043ASN7QQB's SerDes configuration allows flexible allocation of lanes between Ethernet, PCIe, and SATA, subject to total lane count limitations.

Is the LS1043ASN7QQB pin-compatible with the LS1023ASN7QQB?

Yes, the LS1043ASN7QQB and LS1023ASN7QQB share identical 621-pin FC-BGA packaging and mechanical footprint, enabling PCB reuse across performance tiers. However, some SerDes lane assignments and peripheral enablement differ-requiring minor schematic updates and firmware adaptation. The LS1043ASN7QQB retains full backward compatibility for DDR, USB, and UART interfaces.

What security features are integrated into the LS1043ASN7QQB?

The LS1043ASN7QQB integrates SEC 5.4 with hardware acceleration for IPsec, SSL/TLS, DTLS, and IKE protocols, plus XOR acceleration for RAID 5. It also includes Secure Boot with immutable ROM-based bootloader, ARM TrustZone for trusted execution environment isolation, and SMMU-enforced memory access controls. These features are fully implemented in the LS1043ASN7QQB silicon and documented in the LS1043AFS REV 6 security manual.