NXP Semiconductors LS1043ASN8KNLB
- Part No.:
- LS1043ASN8KNLB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 780-FBGA, FCBGA
- Datasheet:
-
LS1043ASN8KNLB.pdf
- Description:
- IC MPU QORIQ 1GHZ 780FCPBGA
- Quantity:
- Payment:

- Shipping:

Inventory:360
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Product details
Overview
LS1043ASN8KNLB from NXP Semiconductors is a quad-core 64-bit ARM Cortex-A53 system-on-chip (SoC) operating up to 1.6 GHz, featuring 1 MB ECC-protected L2 cache, DDR4/DDR3L memory controller (1.6 GT/s), DPAA hardware acceleration for packet processing, and integrated security engine (SEC). It targets industrial gateways and enterprise networking edge devices requiring deterministic low-latency packet forwarding.
For engineers reviewing the LS1043ASN8KNLB datasheet, LS1043ASN8KNLB pinout, LS1043ASN8KNLB application, or LS1043ASN8KNLB equivalent, key selection criteria include SerDes lane configuration (PCIe 2.0 x4, SATA 3.0, SGMII up to 2.5G), IEEE 1588 timestamping support, TrustZone-enabled secure boot, and FC-PBGA 621-ball (21×21 mm) package compatibility with industrial thermal profiles.
Technical Context
The LS1043ASN8KNLB implements a CCI-400 coherency interconnect fabric enabling hardware-managed cache coherency across four Cortex-A53 cores at up to 400 MHz. Its Data Path Acceleration Architecture (DPAA) integrates Frame Manager (FMan), Queue Manager (QMan), Buffer Manager (BMan), and Security Engine (SEC) to offload packet classification, scheduling, buffer management, and cryptographic operations from the CPU.
It supports dual RGMII Ethernet interfaces with IEEE 1588v2 hardware timestamping, four SerDes lanes configurable as PCIe 2.0 (x4), SATA 3.0, SGMII (1G/2.5G), XFI (10G), or QSGMII, and includes three USB 3.0 controllers with integrated PHYs, eSDHC supporting SD 3.0/eMMC 4.5, and integrated flash controller for NAND/NOR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Quad ARM Cortex-A53 64-bit, up to 1.6 GHz - enables Linux-based real-time routing and firewalling with NEON SIMD and v8 crypto extensions. |
| L2 Cache | 1 MB unified I/D cache with ECC - ensures data integrity in industrial environments with radiation-induced bit flips. |
| Memory Interface | 32-bit DDR4/DDR3L controller, 1.6 GT/s, ECC & interleaving - supports up to 8 GB of error-corrected main memory for high-reliability control plane operation. |
| Networking Acceleration | DPAA with FMan/QMan/BMan/SEC - reduces CPU load by >70% for 1 Gbps packet forwarding with classification and encryption. |
| Ethernet Interfaces | 2× RGMII + up to 4× SGMII (1G/2.5G) + optional XFI (10G) - provides flexible multi-speed LAN/WAN connectivity without external PHYs for RGMII links. |
| SerDes Configuration | 4-lane 10 GHz SerDes supporting PCIe 2.0 x4, SATA 3.0, SGMII, XFI, QSGMII - enables single-chip integration of storage, expansion, and high-speed uplinks. |
| Security | ARM TrustZone + SEC hardware crypto engine (AES-128/256, SHA-1/256, RSA-2048) - enables secure boot, encrypted firmware updates, and IPsec offload. |
Pinout & Package
LS1043ASN8KNLB uses a 621-ball Fine-Pitch Ball Grid Array (FC-PBGA) package with 21×21 mm body size and 0.8 mm ball pitch. The package supports industrial temperature range (–40°C to +105°C) and requires controlled thermal design with exposed thermal pad on underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1_MA00–D1_MA15 | DDR4 Address Bus | 16-bit address lines for 32-bit DDR interface; require matched trace lengths and termination for signal integrity at 1.6 GT/s. |
| D1_MDQ00–D1_MDQ31 | DDR4 Data Bus | 32-bit bidirectional data bus with DQS strobes; ECC bits (MECC0–MECC3) enable single-bit correction/double-bit detection. |
| EC1_TXD0–EC1_RXD3 | RGMII Port 1 | Direct RGMII interface to external PHY; supports 10/100/1000 Mbps with IEEE 1588 timestamp registers accessible via MMIO. |
| SD1_TX0_P/N–SD1_RX3_P/N | SerDes Lane 0–3 | Configurable high-speed serial lanes; each pair supports PCIe, SATA, or SGMII depending on strap settings and SerDes initialization firmware. |
| IFC_AD00–IFC_AD15 | NAND/NOR Flash Interface | 16-bit multiplexed address/data bus with dedicated control signals (CS0_B–CS6_B, RB0_B, WE0_B) for boot ROM and firmware storage. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Packet Processing | FMan offloads parsing, classification, and distribution - eliminates software interrupt overhead for line-rate 1G packet forwarding. |
| Secure Boot & Runtime Integrity | TrustZone + SEC + immutable boot ROM - prevents unauthorized firmware execution and enables measured boot attestation. |
| Low-Power Networking | Dynamic core gating, DDR self-refresh, and SerDes power-down modes - achieves <2.5 W typical power at 1.2 GHz under network load. |
| Flexible Clocking Architecture | Dual differential SYSCLK inputs (100/125 MHz) + internal PLLs - simplifies board-level clock tree design for synchronous Ethernet and PCIe timing compliance. |
| Industrial I/O Integration | 6× LPUART, 4× I²C, 8× FlexTimer, GPIO, eSDHC, QSPI - eliminates need for companion microcontrollers in gateway BOM. |
Applications
| Industrial Ethernet Gateway | Enterprise Wireless Access Controller |
|---|---|
Use Scenario: Aggregating Modbus TCP, PROFINET, and EtherNet/IP traffic between factory floor PLCs and cloud SCADA systems. IC Role / Device Role / Timing Role: Central routing and protocol translation SoC with IEEE 1588 boundary clock functionality for time-synchronized control loops. Use Value: Deterministic sub-10 µs packet latency and hardware timestamping ensure synchronized motion control across distributed drives. | Use Scenario: Managing 64+ concurrent 802.11ac APs in campus Wi-Fi deployments with centralized RF optimization and client steering. IC Role / Device Role / Timing Role: Control plane processor running CAPWAP termination, RADIUS proxy, and dynamic channel assignment algorithms. Use Value: DPAA-accelerated packet forwarding sustains 2.5 Gbps aggregate throughput while reserving CPU cycles for real-time RF analytics. |
| Smart Energy Substation Router | Secure SD-WAN Edge Appliance |
Use Scenario: IEC 61850 GOOSE and SV messaging between protection relays, merging units, and HMI in utility substations. IC Role / Device Role / Timing Role: Hard real-time communications processor with sub-microsecond timestamp resolution and redundant RGMII interfaces. Use Value: Hardware-accelerated AES-GCM encryption secures critical grid telemetry without compromising GOOSE message deadlines. | Use Scenario: Branch office edge device performing IPsec tunneling, application-aware routing, and zero-trust policy enforcement. IC Role / Device Role / Timing Role: Dual-role SoC executing Linux networking stack and offloading ESP/AH encryption via SEC engine. Use Value: Full-tunnel IPsec at 1.2 Gbps with <5% CPU utilization leaves resources for DPI and TLS inspection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar networking SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LS1023ASN7KQB | Dual-core Cortex-A53, no SerDes XFI support, 2× fewer PCIe lanes, same DPAA and security features. | Targeted at cost-sensitive 1G edge routers without 10G uplink or SATA storage requirements. | Select when thermal envelope or BOM cost constraints preclude quad-core performance and 10G capability. |
| LS1046ASN8QQB | Quad-core Cortex-A72 (vs A53), higher IPC, 2× DPAA2 engines, supports DDR4-2400, adds PCIe 3.0 and USB 3.1. | Designed for 5G small cell gateways and AI-enabled network analytics requiring >2× CPU throughput. | Select when application demands >2.0 GHz effective compute or DPAA2's advanced flow classification and metering. |
Compared with LS1023ASN7KQB, LS1043ASN8KNLB delivers 2.3× higher packet forwarding capacity and SerDes flexibility for 10G uplinks; versus LS1046ASN8QQB, it trades peak CPU performance for lower power and proven maturity in industrial deployments.
Availability
LS1043ASN8KNLB is available at Aetrix Electronics and suitable for industrial gateways, enterprise wireless controllers, and smart energy infrastructure requiring stable component supply, long-term lifecycle support, and extended temperature operation.
Supply support for LS1043ASN8KNLB 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 communications processors.
The LS1043A product line was designed specifically for cost-optimized, power-efficient edge networking - delivering carrier-grade packet processing, hardware security, and industrial reliability in a single SoC for next-generation gateways and controllers.
FAQ
What is the maximum DDR4 data rate supported by LS1043ASN8KNLB?
The LS1043ASN8KNLB supports DDR4/DDR3L memory at up to 1.6 GT/s (effective 3200 MT/s for DDR4-3200), with ECC, interleaving, and programmable timing parameters. This enables sustained bandwidth of 6.4 GB/s across its 32-bit bus, sufficient for simultaneous control plane and data plane processing in multi-service gateways.
Does LS1043ASN8KNLB support IEEE 1588 Precision Time Protocol in hardware?
Yes, LS1043ASN8KNLB includes full hardware IEEE 1588v2 timestamping on both RGMII interfaces, with dedicated registers for ingress/egress timestamp capture, PTP event message handling, and transparent clock functionality - eliminating software timestamp jitter and enabling sub-100 ns time synchronization accuracy.
How many PCIe endpoints can LS1043ASN8KNLB configure simultaneously?
LS1043ASN8KNLB's 4-lane SerDes supports up to three independent PCIe 2.0 controllers: two x2 links and one x4 link, or one x4 plus one x2 plus SATA, depending on configuration straps and firmware initialization. All configurations are mutually exclusive and defined at boot time via RCW.
What boot sources are natively supported by LS1043ASN8KNLB?
LS1043ASN8KNLB supports boot from Quad SPI NOR flash (via QSPI_A/B controllers), NAND flash (via Integrated Flash Controller with 8-bit ECC), SD/eMMC (via eSDHC), and PCIe endpoint - with secure boot enforced through immutable ROM code, hash verification, and TrustZone-protected key storage.
Is LS1043ASN8KNLB pin-compatible with other LS104xA variants?
Yes, LS1043ASN8KNLB shares identical 621-ball FC-PBGA (21×21 mm) mechanical footprint and pinout with LS1043ASN7KQB and LS1043ASN7KPB, enabling hardware reuse across performance tiers. Power and signal integrity requirements remain consistent, though thermal design must accommodate 1.6 GHz operation.
LS1043ASN8KNLB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 780-FBGA, FCBGA
- Series:
- QorIQ® Layerscape
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Core Processor:
- ARM® Cortex®-A53
- Number of Cores/Bus Width:
- 4 Core, 64-Bit
- Speed:
- 1GHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- DDR3L, DDR4
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 1GbE (7), 10GbE (1), 2.5GbE (2)
- SATA:
- SATA 6Gbps (1)
- USB:
- USB 3.0 + PHY (3)
- Voltage - I/O:
- -
- Operating Temperature:
- 0°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- ARM TZ, Boot Security
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 780-FCPBGA (23x23)
- Additional Interfaces:
- eMMC/SD/SDIO, I2C, SPI, UART
LS1043ASN8KNLB FAQ
1.How can I place an order for LS1043ASN8KNLB through Aetrix?
Please submit a Request for Quotation (RFQ) for LS1043ASN8KNLB 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 LS1043ASN8KNLB reliable?
The price and inventory of LS1043ASN8KNLB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LS1043ASN8KNLB is usually 5 days.
3.What payment methods are accepted for LS1043ASN8KNLB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LS1043ASN8KNLB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LS1043ASN8KNLB?
LS1043ASN8KNLB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LS1043ASN8KNLB 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 LS1043ASN8KNLB?
For technical support, including LS1043ASN8KNLB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LS1043ASN8KNLB requirements.
6.How does Aetrix verify that LS1043ASN8KNLB is sourced from the original manufacturer or authorized distributors?
All LS1043ASN8KNLB 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 LS1043ASN8KNLB meets industry standards.
7.What is the process for return or replacement of LS1043ASN8KNLB?
All LS1043ASN8KNLB units undergo pre-shipment inspection (PSI). If there is an issue with LS1043ASN8KNLB, 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 LS1043ASN8KNLB part is unused and in its original packaging.
Return procedure for LS1043ASN8KNLB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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