NXP Semiconductors LS1023ASE7QQB

Overview

LS1023ASE7QQB from NXP Semiconductors is a dual-core 64-bit Arm® Cortex®-A53 communications processor operating up to 1.2 GHz, featuring 32 KB L1 instruction cache with parity, 32 KB L1 data cache with ECC, and 1 MB unified L2 cache with ECC. It integrates a DDR3L/DDR4 memory controller (up to 1.6 GT/s), Data Path Acceleration Architecture (DPAA) for packet processing, and dual RGMII Ethernet interfaces - deployed in industrial gateways and secure edge networking appliances.

For engineers reviewing the LS1023ASE7QQB datasheet, LS1023ASE7QQB pinout, LS1023ASE7QQB application, or LS1023ASE7QQB equivalent, this page delivers verified core count, clock speed, cache configuration, memory interface specs, and SerDes lane allocation per official NXP LS1023A documentation - enabling accurate SoC selection for deterministic real-time networking stacks.

Technical Context

The LS1023ASE7QQB implements a hierarchical CCI-400™ coherency fabric supporting hardware-managed data coherency across its two Cortex-A53 cores and accelerators. Its DPAA subsystem includes Frame Manager (FMan), Queue Manager (QMan), Buffer Manager (BMan), and Security Engine (SEC) for offloading packet classification, scheduling, buffer management, and cryptographic operations.

It features four SerDes lanes configurable as PCIe 2.0 x4, SATA 3.0, SGMII (1G/2.5G), XFI (10G), or QSGMII, plus integrated peripherals including three USB 3.0 controllers with PHYs, eSDHC supporting SD 3.0/eMMC 4.5, QuadSPI, IFC for NAND/NOR flash, six LPUARTs, two DUARTs, and Trust Architecture for secure boot and runtime integrity.

Key Specifications

Pinout & Package

LS1023ASE7QQB uses a 621-ball FC-PBGA package (21×21 mm, 0.8 mm pitch) with thermal lid. Pin assignments follow the LS1023A-specific 21×21 ball map documented in NXP DS Rev. 4.1, Section 2.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1043ASE7QQB, the LS1023ASE7QQB delivers identical security, timing, and peripheral integration at lower power and cost - making it optimal for dual-port industrial gateways. Versus LS1012ASE7KQB, it adds critical DPAA acceleration and dual RGMII, enabling scalable real-time networking without software-only bottlenecks.

Availability

LS1023ASE7QQB is available at Aetrix Electronics and suitable for industrial gateways, secure edge routers, time-sensitive networking nodes, and smart energy metering hubs requiring stable component supply across extended product lifecycles.

Supply support for LS1023ASE7QQB 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 IoT applications.

The LS1023A belongs to NXP's QorIQ Layerscape family - designed specifically for cost-optimized, power-efficient edge networking SoCs requiring deterministic real-time performance, hardware-accelerated security, and industrial-grade reliability.

FAQ

What is the maximum operating frequency of the LS1023ASE7QQB?

The LS1023ASE7QQB operates at a maximum frequency of 1.2 GHz. This is a fixed speed grade specific to the LS1023A variant - confirmed in NXP's LS1023A/LS1043A datasheet Rev. 4.1, Section 1 (Introduction) and Table 3-1 (Overall DC Electrical Characteristics). It differs from the LS1043A's 1.6 GHz rating and is not user-configurable via software or voltage scaling.

Does the LS1023ASE7QQB support DDR4 memory?

Yes, the LS1023ASE7QQB supports both DDR3L and DDR4 memory via its integrated 32-bit memory controller. Per Section 3.10 of the NXP datasheet, it handles DDR4-1600 (1.6 GT/s) with ECC and address/data interleaving. Designers must select appropriate termination and VDDQ voltage (1.2 V for DDR4) and comply with layout guidelines in Section 4.2 for signal integrity.

How many RGMII interfaces does the LS1023ASE7QQB provide?

The LS1023ASE7QQB provides two RGMII interfaces - RGMII1 and RGMII2 - each supporting 1000BASE-T operation with IEEE 1588v2 hardware timestamping. This is explicitly stated in the "Parallel Ethernet interfaces" feature list and verified in the pinout tables (Sections 2.2 and 2.4), where EC1_ and EC2_ signal groups map to dedicated RGMII PHY lanes.

Is the LS1023ASE7QQB pin-compatible with the LS1043ASE7QQB?

Yes, the LS1023ASE7QQB is pin-compatible with the LS1043ASE7QQB in the 621-ball FC-PBGA package. Both share identical mechanical dimensions, ball map, and signal assignment per NXP's joint LS1023A/LS1043A datasheet Rev. 4.1. Functional differences (e.g., core count, SerDes configuration) do not affect PCB layout - enabling drop-in replacement where dual-core performance suffices.

What security features are implemented in hardware on the LS1023ASE7QQB?

The LS1023ASE7QQB implements Trust Architecture in hardware, including secure boot with SHA-256/RSA-2048 signature verification, tamper-detect circuitry, eFuse-based key storage, and runtime attestation via ARM TrustZone. These features are detailed in Sections 1 (Introduction) and 7 (Security fuse processor) of the NXP datasheet and require no external security ICs for IEC 62443-3-3 SL2 compliance.