NXP Semiconductors LS1021ASN7KQB
- Part No.:
- LS1021ASN7KQB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 525-FBGA, FCBGA
- Datasheet:
-
LS1021ASN7KQB.pdf
- Description:
- IC MPU QORIQ 1.0GHZ 525FCPBGA
- Quantity:
- Payment:

- Shipping:

Inventory:286
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Product details
Overview
LS1021ASN7KQB from NXP is a dual-core ARM Cortex-A7 communications processor with ECC-protected L1/L2 caches, 512 KB coherent L2 cache, DDR3L/4 memory controller (up to 1600 MHz), and integrated QUICC Engine for industrial protocol support. It delivers over 7,000 CoreMarks® at ≤3 W typical system power and targets fanless networked edge devices such as IoT gateways and industrial routers.
For engineers reviewing the LS1021ASN7KQB datasheet, LS1021ASN7KQB pinout, LS1021ASN7KQB application, or LS1021ASN7KQB equivalent, key selection considerations include its 1.2 GHz core frequency, IEEE 1588-capable triple Gigabit Ethernet, USB 3.0 + USB 2.0 dual controllers, SATA 3.0 interface, and four CAN ports for deterministic industrial connectivity.
Technical Context
The LS1021ASN7KQB implements a cache-coherent interconnect (CCI-400) linking two ARM Cortex-A7 cores, each with 32 KB I/D cache and NEON/FPU, sharing 512 KB L2 cache. It integrates a dedicated QUICC Engine subsystem supporting HDLC, TDM, and PB protocols alongside hardware-accelerated security (SEC 5.5) for IPsec/SSL/DTLS.
Its 4-lane 6 GHz SerDes enables concurrent PCIe Gen2 x2, triple Gigabit Ethernet with IEEE 1588 timestamping, and SATA 3.0. Peripheral integration includes QuadSPI, IFC, SD/MMC, 4×CAN, 10×UARTs, 3×I²C, 2×SPI, ASRC/SPDIF audio, and an LCD controller with 2D-ACE for HMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual ARM Cortex-A7 @ up to 1.2 GHz with NEON SIMD and dual-precision FPU |
| Cache Memory | ECC-protected 32 KB L1 instruction/data per core; shared 512 KB coherent L2 cache |
| Memory Interface | DDR3L/DDR4 controller supporting 8/16/32-bit bus widths at up to 1600 MT/s |
| Networking Interfaces | Triple Gigabit Ethernet with IEEE 1588 v2 hardware timestamping and flow control |
| High-Speed SerDes | 4-lane 6 GHz multi-protocol SerDes supporting PCIe Gen2 x2, SATA 3.0, and SGMII |
| Industrial Peripherals | 4×CAN FD-capable controllers, 10×UARTs (2×DUART + 6×LP UART), QUICC Engine for HDLC/TDM |
| Security Acceleration | SEC 5.5 engine supporting AES-128/256, SHA-256/512, RSA-4096, IPsec, SSL/TLS, DTLS, IKE |
Pinout & Package
LS1021ASN7KQB is housed in a 23x23 mm, 621-pin FC-BGA package (S/N7KQB suffix denotes this specific ball grid array variant). Pin assignment follows the LS1021A reference design layout with dedicated SerDes lanes, DDR4 DQ/DQS groups, and QUICC Engine signal banks routed to designated BGA regions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DDR4_DQ[0:7] | Data bus lane group | 8-bit data segment for DDR4 interface; requires matched trace length and on-die termination calibration |
| SERDES_LANE0_P/N | PCIe Gen2 differential pair | Primary PCIe x1 link; supports root complex or endpoint mode with auto-negotiation |
| ENET0_TXD[0:3] | Gigabit Ethernet transmit data | 4-bit MII/RMII interface for first Ethernet port; compatible with IEEE 802.3ab/1588 |
| CAN0_TX/RX | Controller Area Network channel 0 | Differential signaling pair supporting ISO 11898-1 up to 1 Mbps with built-in filtering |
| USB3_DP/DM | SuperSpeed USB 3.0 differential pair | Integrated PHY supports 5 Gbps operation; requires 90 Ω differential impedance routing |
| QUICC_CLK | QUICC Engine clock input | Provides synchronous timing for HDLC/TDM protocol processing; derived from internal PLL |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Virtualization Support | ARM TrustZone + hypervisor extensions enable secure partitioning of real-time and general-purpose workloads |
| Integrated LCD Controller (2D-ACE) | Supports RGB/TFT panels up to WXGA resolution; eliminates external graphics IC for cost-sensitive HMIs |
| QuadSPI Flash Interface | Single/dual/quad I/O modes with XIP support; reduces boot time and simplifies firmware update architecture |
| ASRC Audio Subsystem | Asynchronous Sample Rate Converter enables jitter-free audio bridging between independent clock domains |
| Power Management Unit (PMU) | Dynamic voltage/frequency scaling across CPU, DDR, and peripheral domains to maintain ≤3 W system power |
Applications
| Enterprise AP Router | Multi-Protocol IoT Gateway |
|---|---|
Use Scenario: High-density 802.11ac/n wireless access point with traffic shaping and QoS enforcement. IC Role / Device Role / Timing Role: Main applications processor handling packet forwarding, CAPWAP tunneling, and Linux-based WLAN management stack. Use Value: Triple IEEE 1588 Ethernet ports enable precise time-synchronized mesh backhaul; SEC 5.5 accelerates WPA3 encryption without CPU overhead. | Use Scenario: Field-deployable gateway aggregating Modbus, CAN, and MQTT traffic for smart energy monitoring. IC Role / Device Role / Timing Role: Central protocol translation hub with QUICC Engine managing legacy industrial serial protocols and ARM cores running MQTT broker. Use Value: Four CAN controllers and 10 UARTs eliminate external protocol bridge ICs; ECC-protected caches ensure uptime in unattended deployments. |
| Industrial Automation Controller | Mobile Wireless Router |
Use Scenario: DIN-rail PLC with motion control, safety I/O, and OPC UA server functionality. IC Role / Device Role / Timing Role: Real-time deterministic controller executing IEC 61131-3 logic while hosting web HMI via integrated LCD controller. Use Value: 2D-ACE LCD controller drives 7-inch resistive touchscreen without GPU; QUICC Engine handles PROFIBUS/PROFINET slave stacks. | Use Scenario: In-vehicle LTE router providing Wi-Fi hotspot, GPS logging, and fleet telematics. IC Role / Device Role / Timing Role: Dual-core application processor managing cellular modem interface, firewall, and encrypted cloud upload pipelines. Use Value: USB 3.0 interface connects high-throughput LTE modems; SATA 3.0 enables local video buffer storage for incident recording. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar communications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LS1021ASTN7KQB | Same silicon; STN7KQB denotes extended temperature grade (–40°C to +105°C) vs. standard SN7KQB (–40°C to +105°C - same range; suffix difference reflects minor qualification revision) | No functional difference; both qualified for industrial ambient operation | Select LS1021ASN7KQB for standard industrial temperature compliance with full documentation traceability |
| i.MX 6SoloX MCIMX6SXNNCZ8 | Single ARM Cortex-A9 + Cortex-M4 heterogenous core; no QUICC Engine; lower peak CoreMark (≈5,500); no native CAN or IEEE 1588 Ethernet | Better suited for multimedia-rich HMIs than deterministic industrial protocol handling | Choose i.MX 6SoloX only when M4 real-time co-processor is required and QUICC Engine/CAN are not needed |
Compared with LS1021ASTN7KQB, the LS1021ASN7KQB offers identical thermal and electrical specifications but with updated qualification documentation; versus i.MX 6SoloX, LS1021ASN7KQB provides superior industrial protocol offload, deterministic networking, and higher CoreMark performance at comparable power.
Availability
LS1021ASN7KQB is available at Aetrix Electronics and suitable for enterprise AP routers, multi-protocol IoT gateways, and industrial automation controllers requiring stable component supply across long-life embedded programs.
Supply support for LS1021ASN7KQB 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 applications.
The QorIQ LS1021A belongs to NXP's Layerscape family of ARM-based communications processors, designed specifically for power-constrained, fanless network edge devices requiring high integration, hardware-accelerated security, and industrial protocol support.
FAQ
What is the maximum operating frequency of the LS1021ASN7KQB?
The LS1021ASN7KQB operates at up to 1.2 GHz per ARM Cortex-A7 core. This frequency is sustained under thermal and power constraints defined in the official NXP LS1021A datasheet (Document Number: LS1021AFS REV 6), with dynamic voltage and frequency scaling managed by the on-chip power management unit to maintain ≤3 W total system power.
Does the LS1021ASN7KQB support DDR4 memory?
Yes, the LS1021ASN7KQB includes a DDR3L/DDR4 memory controller supporting 8-, 16-, or 32-bit interfaces at data rates up to 1600 MT/s. DDR4 support enables higher density, lower voltage (1.2 V), and improved reliability over DDR3L-critical for long-life industrial deployments where memory longevity matters.
How many CAN interfaces does the LS1021ASN7KQB provide?
The LS1021ASN7KQB integrates four CAN controllers compliant with ISO 11898-1, each supporting bit rates up to 1 Mbps. These are fully independent and can operate simultaneously, enabling direct connection to multiple CAN buses in factory automation or vehicle telematics without external transceivers or protocol bridges.
Is hardware virtualization supported on the LS1021ASN7KQB?
Yes, the LS1021ASN7KQB supports hardware-assisted virtualization via ARM TrustZone and hypervisor extensions. This allows secure partitioning of resources between real-time industrial control tasks and general-purpose Linux services-enabling consolidated systems that meet both safety and connectivity requirements without compromising isolation.
What development platform is officially supported for the LS1021ASN7KQB?
The TWR-LS1021A Tower System evaluation board is the official NXP-supported platform for LS1021ASN7KQB. It includes on-board debug probe, Linux 3.12 SDK with optimized drivers, and a 90-day evaluation license for CodeWarrior development tools-providing full hardware/software validation capability before custom board design.
LS1021ASN7KQB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 525-FBGA, FCBGA
- Series:
- QorIQ® Layerscape
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A7
- Number of Cores/Bus Width:
- 2 Core, 32-Bit
- Speed:
- 1.0GHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- DDR3L, DDR4
- Graphics Acceleration:
- -
- Display & Interface Controllers:
- 2D-ACE
- Ethernet:
- GbE (3)
- SATA:
- SATA 6Gbps (1)
- USB:
- USB 3.0 (1) + PHY
- Voltage - I/O:
- -
- Operating Temperature:
- 0°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Security Features:
- Secure Boot, TrustZone®
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 525-FCPBGA (19x19)
- Additional Interfaces:
- -
LS1021ASN7KQB FAQ
1.How can I place an order for LS1021ASN7KQB through Aetrix?
Please submit a Request for Quotation (RFQ) for LS1021ASN7KQB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LS1021ASN7KQB reliable?
The price and inventory of LS1021ASN7KQB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LS1021ASN7KQB is usually 5 days.
3.What payment methods are accepted for LS1021ASN7KQB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LS1021ASN7KQB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LS1021ASN7KQB?
LS1021ASN7KQB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LS1021ASN7KQB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LS1021ASN7KQB?
For technical support, including LS1021ASN7KQB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LS1021ASN7KQB requirements.
6.How does Aetrix verify that LS1021ASN7KQB is sourced from the original manufacturer or authorized distributors?
All LS1021ASN7KQB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LS1021ASN7KQB meets industry standards.
7.What is the process for return or replacement of LS1021ASN7KQB?
All LS1021ASN7KQB units undergo pre-shipment inspection (PSI). If there is an issue with LS1021ASN7KQB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LS1021ASN7KQB part is unused and in its original packaging.
Return procedure for LS1021ASN7KQB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LS1021ASN7KQB Tags

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