NXP Semiconductors LS1021AXE7KQB

Overview

LS1021AXE7KQB from NXP Semiconductors is a dual-core ARM Cortex-A7 communications processor with ECC-protected L1/L2 caches, DDR3L/4 memory controller (up to 1600 MHz), and integrated QUICC Engine for industrial protocol offload. It delivers 7,000+ CoreMarks® at ≤3 W typical system power and supports IEEE 1588–enabled triple Gigabit Ethernet, PCIe 2.0 ×2, SATA 3.0, USB 3.0 + USB 2.0, and four CAN interfaces - deployed in fanless enterprise AP routers and IoT gateways.

For engineers reviewing the LS1021AXE7KQB datasheet, LS1021AXE7KQB pinout, LS1021AXE7KQB application, or LS1021AXE7KQB equivalent, key selection criteria include verified ECC cache reliability, hardware virtualization support, SEC 5.5 security engine integration, LCD controller capability for HMI, and SerDes-configurable 6 GHz multi-protocol I/O for deterministic networking.

Technical Context

The LS1021AXE7KQB implements a cache-coherent dual Cortex-A7 core complex with NEON SIMD and dual-precision FPU, backed by 512 KB shared L2 cache and ECC on both L1 instruction/data and L2 memory. Its CCI-400 interconnect ensures coherent access across accelerators including QUICC Engine (HDLC/TDM/PB), Security Engine (SEC 5.5), and audio subsystem (ASRC/SPDIF).

System-level integration includes a 4-lane 6 GHz SerDes supporting three configurable high-speed interfaces (e.g., 3×GbE, 2×PCIe 2.0, 1×SATA 3.0), plus dedicated peripherals: QuadSPI, IFC NAND/NOR controller, 10 UARTs (2 DUART + 6 LP UART), 3×I²C, 2×SPI, and LCD controller with 2D-ACE acceleration for touch-enabled HMI.

Key Specifications

Pinout & Package

LS1021AXE7KQB is housed in a 23x23 mm, 621-ball FC-BGA package (RoHS-compliant, Pb-free, 0.8 mm pitch). Pin assignment is defined in NXP document LS1021AFS REV 6, with ball map organized into functional banks: Core Complex (VDD_ARM, VDD_SOC), DDR (DQ[31:0], ADDR/CMD), SerDes (SERDES0–3), Ethernet (RGMII0–2), PCIe (CLK/PERST#/PRSNT#), USB (VBUS/DP/DM), CAN (CAN0_TX/RX through CAN3_TX/RX), and QUICC Engine (TDM_CLK, HDLC_RX/TX).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1021AXE7KQB, LS1021AXE7KQBA is functionally identical and interchangeable, whereas i.MX 6SoloX lacks QUICC Engine, SerDes, and SEC 5.5 - making it unsuitable for deterministic industrial networking or hardware-accelerated security tasks.

Availability

LS1021AXE7KQB is available at Aetrix Electronics and suitable for enterprise AP routers, multi-protocol IoT gateways, and industrial PLC controllers requiring stable component supply, long-term lifecycle assurance, and validated thermal performance under fanless operation.

Supply support for LS1021AXE7KQB 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 markets, with deep expertise in ARM-based processing and networking IP.

The LS1021A product line targets power-constrained, fanless networked applications - integrating ARM cores, QUICC Engine, and SerDes to replace discrete networking components in enterprise, industrial, and smart infrastructure systems.

FAQ

What is the maximum operating frequency of the LS1021AXE7KQB?

The LS1021AXE7KQB features dual ARM Cortex-A7 cores rated for operation up to 1.2 GHz. This frequency is guaranteed across the commercial temperature range (0°C to 105°C junction) with appropriate voltage and thermal management. The LS1021AXE7KQB achieves this speed while maintaining ≤3 W typical system power consumption, enabling fanless deployment in compact enclosures.

Does the LS1021AXE7KQB support DDR4 memory?

Yes, the LS1021AXE7KQB includes a DDR3L/DDR4 memory controller supporting data rates up to 1600 MT/s. It is among the first sub-3 W processors to offer native DDR4 compatibility, allowing higher bandwidth and lower voltage (1.2 V) operation compared to DDR3L. This capability is documented in the LS1021AFS REV 6 datasheet and validated in NXP's LS1021A Reference Design Board (RDB) schematics.

How many CAN interfaces does the LS1021AXE7KQB provide?

The LS1021AXE7KQB integrates four independent CAN 2.0B controllers, each with dedicated TX/RX pins and message RAM. These are fully supported in the Linux kernel via the flexcan driver and are used in industrial applications such as factory automation and building control systems. All four CAN interfaces operate concurrently and are electrically isolated via external transceivers in typical designs.

Is hardware virtualization supported on the LS1021AXE7KQB?

Yes, the LS1021AXE7KQB includes ARM Virtualization Extensions and hardware-assisted virtualization support, enabling hypervisor-based partitioning of physical resources. This allows simultaneous execution of Linux and real-time OS domains with strict isolation - confirmed in NXP's QorIQ LS1021A Virtualization Application Note AN5077 and validated using Wind River Helix Virtualization Platform.

What development platform is officially supported for the LS1021AXE7KQB?

The TWR-LS1021A Tower System evaluation kit is the official NXP-supported development platform for the LS1021AXE7KQB. It includes on-board JTAG debugging, DDR3L memory, GbE PHYs, USB 3.0/2.0 ports, and SD card slot. The kit ships with Linux 3.12 SDK and a 90-day CodeWarrior evaluation license - all documented in NXP's LS1021A Hardware Design Guide and Software Development Kit Release Notes.