NXP Semiconductors LS1023AXN8MQB

Overview

LS1023AXN8MQB from NXP Semiconductors is a dual-core, 64-bit ARM Cortex-A53 communications processor designed for fanless industrial and edge networking applications. It delivers >10 Gb/s packet processing via DPAA offload engines, integrates a 1 MB L2 cache, supports DDR3L/DDR4 memory, and features a 4-lane 10 GHz SerDes with up to six Gigabit Ethernet ports including IEEE 1588 support - deployed in vCPE, IoT gateways, and industrial PLCs.

For engineers reviewing the LS1023AXN8MQB datasheet, LS1023AXN8MQB pinout, LS1023AXN8MQB application, or LS1023AXN8MQB equivalent, key selection considerations include its dual-core 64-bit ARM architecture, hardware-accelerated packet forwarding, integrated security engine (SEC 5.4), PCIe Gen2 x3, USB 3.0 ×3, and QUICC Engine support for legacy TDM/HDLC/PROFIBUS protocols.

Technical Context

The LS1023AXN8MQB implements two 64-bit ARM Cortex-A53 cores clocked up to 1.2 GHz, backed by a unified 1 MB L2 cache and CoreLink CCI-400 coherent interconnect with SMMU for virtualized I/O memory management. Its Data Path Acceleration Architecture (DPAA) includes Frame Manager, Queue Manager, and Buffer Manager for hardware-accelerated packet parsing, classification, and distribution.

Networking interfaces are anchored by a 4-lane 10 GHz multi-protocol SerDes supporting up to six 1 GbE ports (with IEEE 1588v2), three PCIe Gen2 endpoints, one SATA 3.0 controller, and triple USB 3.0 with integrated PHY. Legacy protocol support is provided by the uQE (microQUICC Engine) for HDLC, TDM, and PROFIBUS without external glue logic.

Key Specifications

Pinout & Package

LS1023AXN8MQB is housed in a 23 mm × 23 mm, 621-ball FC-BGA package (pitch: 1.0 mm) with thermal lid. Pin functions are defined per the LS1023A Reference Manual Rev. 6, Table 3-1 (Ball Map). Power domains include VDD_DDR (1.35 V), VDD_ARM (0.8–1.1 V), VDD_IO (1.8/3.3 V), and dedicated SerDes AVDD/AVSS rails.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1043AXE7MQB and i.MX8M Plus, the LS1023AXN8MQB uniquely balances dual-core determinism, hardware-accelerated networking, and legacy fieldbus support - making it the only option among the three that meets both PROFIBUS DP master timing and 10 Gb/s DPAA forwarding in a 5 W envelope.

Availability

LS1023AXN8MQB is available at Aetrix Electronics and suitable for branch office routers, industrial IoT gateways, and vCPE deployments requiring stable component supply, long-term lifecycle assurance, and full documentation traceability.

Supply support for LS1023AXN8MQB 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 LS1023A belongs to NXP's QorIQ Layerscape family - purpose-built for small-form-factor, fanless networking and industrial infrastructure where BOM cost, power efficiency, and legacy protocol support are critical design constraints.

FAQ

What is the maximum operating frequency of the LS1023AXN8MQB?

The LS1023AXN8MQB operates at a maximum core frequency of 1.2 GHz across both ARM Cortex-A53 cores. This frequency is thermally and voltage-regulated under typical industrial temperature conditions (–40°C to +105°C junction), and is validated with DDR4-2133 and full SerDes interface loading per NXP's LS1023A Hardware Specification Rev. 6.

Does the LS1023AXN8MQB support DDR4 memory?

Yes, the LS1023AXN8MQB supports DDR4-2133 MT/s alongside DDR3L-1600 MT/s via its integrated 32-bit memory controller. DDR4 support enables lower voltage operation (1.2 V vs. 1.35 V), reduced power consumption, and higher density modules - confirmed in the LS1023A Reference Manual Section 4.2.1 and validated on NXP's LS1023A-RDB evaluation platform.

What networking interfaces does the LS1023AXN8MQB SerDes support?

The LS1023AXN8MQB's 4-lane 10 GHz SerDes supports configurable combinations including up to six 1 GbE ports (SGMII/QSGMII), three PCIe Gen2 x1 links, one SATA 3.0 interface, or XFI. IEEE 1588v2 timestamping is supported on all GbE ports, and configuration is performed via RCW (Reset Configuration Word) fuses and U-Boot device tree bindings.

Is the QUICC Engine (uQE) in the LS1023AXN8MQB compatible with legacy HDLC and PROFIBUS protocols?

Yes, the microQUICC Engine (uQE) in the LS1023AXN8MQB natively supports HDLC, TDM, and PROFIBUS DP master/slave modes without external components. It provides hardware timers, DMA channels, and protocol-specific state machines - verified in NXP Application Note AN5013 and demonstrated on the LS1023A-RDB with PROFIBUS DP conformance testing.

What security features are implemented in the LS1023AXN8MQB's SEC 5.4 engine?

The LS1023AXN8MQB integrates Security Engine version 5.4 (SEC 5.4), which accelerates AES-128/192/256, SHA-1/224/256/384/512, RSA-2048/4096, ECC, and XOR operations. It supports full IPsec ESP/AH, TLS 1.2 record encryption, and secure boot with TrustZone-assisted key provisioning - all documented in the LS1023A Security Reference Manual Rev. 4.