NXP Semiconductors LS1023ASN7MNLB

Overview

LS1023ASN7MNLB from NXP Semiconductors is a dual-core, 64-bit ARM Cortex-A53 communications processor designed for embedded networking and industrial infrastructure. It delivers >10 Gb/s packet processing via DPAA offload engines, integrates a 1 MB L2 cache, supports DDR3L/DDR4 memory, and targets fanless branch office routers and industrial PLCs.

For engineers reviewing the LS1023ASN7MNLB datasheet, LS1023ASN7MNLB pinout, LS1023ASN7MNLB application, or LS1023ASN7MNLB equivalent, key selection factors include its dual-core 64-bit ARM architecture, integrated Frame Manager with IEEE 1588 support, SEC 5.4 security engine, SerDes-based multi-protocol I/O (up to 6× Gigabit Ethernet), and hardware virtualization support via SMMU and CoreLink CCI-400.

Technical Context

The LS1023ASN7MNLB implements two 64-bit ARM Cortex-A53 cores clocked up to 1.2 GHz, paired with a 1 MB shared L2 cache and CoreLink CCI-400 coherent interconnect. It integrates the QorIQ Data Path Acceleration Architecture (DPAA) with Frame Manager for hardware-accelerated packet parsing, classification, and IPsec offload via SEC 5.4.

Its four-lane 10 GHz SerDes supports up to six Gigabit Ethernet ports (with IEEE 1588 v2), three PCIe Gen2 interfaces, one SATA 3.0 port, and triple USB 3.0 controllers with integrated PHY. Memory subsystem supports DDR3L/DDR4 at 1600 MT/s with ECC and 32-bit bus width.

Key Specifications

Pinout & Package

LS1023ASN7MNLB is housed in a 23x23 mm, 621-pin FC-BGA package (RoHS-compliant, Pb-free). Pin mapping is defined in NXP document LS1023AFS Rev 6, with dedicated ball groups for DDR3L/4, SerDes lanes, PCIe, USB, I2C/SPI, UART, and power/ground distribution.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1023ASN7MNLB, LS1043ASN7MQB offers higher compute density for bandwidth-intensive tasks but consumes ~1.8 W more under load; i.MX 8M Plus trades networking offload capability for heterogeneous compute and media features, requiring external security and protocol ICs in industrial networking roles.

Availability

LS1023ASN7MNLB is available at Aetrix Electronics and suitable for branch office routers, industrial PLC controllers, and vCPE edge gateways requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for LS1023ASN7MNLB 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 edge computing.

The LS1023A product line was engineered specifically for cost-optimized, fanless embedded networking and industrial control applications-delivering enterprise-grade packet processing, hardware security, and legacy protocol support in a compact BGA package.

FAQ

What is the maximum operating frequency of the LS1023ASN7MNLB?

The LS1023ASN7MNLB operates at a maximum core frequency of 1.2 GHz across both ARM Cortex-A53 cores. This frequency is guaranteed under industrial temperature range (−40°C to +105°C) with appropriate thermal design and DDR3L/DDR4 memory timing constraints. The LS1023ASN7MNLB does not support frequency binning beyond 1.2 GHz, and operation above this rating voids warranty and may cause timing violations.

Does the LS1023ASN7MNLB support DDR4 memory?

Yes, the LS1023ASN7MNLB supports both DDR3L and DDR4 memory up to 1600 MT/s with ECC enabled. DDR4 support is implemented via the same 32-bit memory controller used for DDR3L, with configurable drive strength and on-die termination settings. Reference designs use Micron MT41K256M16TW-107 and Samsung K4A8G085WB-BCPB for validated DDR4 operation.

Is the LS1023ASN7MNLB pin-compatible with the LS1043A series?

No, the LS1023ASN7MNLB is not pin-compatible with LS1043A variants. Although both share the same 621-ball FC-BGA footprint and mechanical dimensions, ball assignments for SerDes lanes, PCIe, and USB differ significantly. Migration requires PCB redesign; however, software and SDK compatibility is maintained through the Layerscape SDK and QorIQ Linux BSP.

What security features are integrated into the LS1023ASN7MNLB?

The LS1023ASN7MNLB integrates SEC 5.4 for cryptographic acceleration (IPsec, TLS, DTLS, IKE), ARM TrustZone for secure world isolation, and immutable secure boot with hash-based signature verification. These features operate in concert: TrustZone protects secure boot keys, while SEC 5.4 executes cipher operations in non-secure world under SMMU-enforced memory protection-ensuring end-to-end chain-of-trust for LS1023ASN7MNLB deployments.

Can the LS1023ASN7MNLB support IEEE 1588 Precision Time Protocol?

Yes, the LS1023ASN7MNLB supports IEEE 1588-2008 (v2) PTP in hardware via its Frame Manager and SerDes-based SGMII/XFI interfaces. Timestamping occurs at the MAC layer with sub-50 ns resolution, and the device provides dedicated PPS output and hardware-assisted correction for asymmetry and delay. This capability is validated in NXP's LS1023A Reference Design Board (RD-PB-LS1023A) with Linux PTP stack.