LS1043ASN8KNLB
| Part Description |
ARM® Cortex®-A53 Microprocessor IC QorIQ® Layerscape 4 Core, 64-Bit 1.0GHz 780-FCPBGA (23x23) |
|---|---|
| Quantity | 198 Available (as of October 8, 2026) |
| Product Category | Microprocessors |
|---|---|
| Part Series | LS1043A |
| Manufacturer | NXP USA Inc. |
| Manufacturing Status | Active |
| Manufacturer Standard Lead Time | 18 Weeks |
| Datasheet |
Specifications & Environmental
| Core Processor | ARM® Cortex®-A53 | Device Package | 780-FCPBGA (23x23) | ECCN | 5A002A1 | ||
|---|---|---|---|---|---|---|---|
| Ethernet | 1GbE (7) or 10GbE (1) & 1GbE (5) | HTS Code | 8542.31.0001 | Moisture Sensitivity Level | 3 (168 Hours) | ||
| Mounting Method | Surface Mount | Mounting Type | Surface Mount | Number of Cores/Bus Width | 4 Core, 64-Bit | ||
| Operating Temperature | 0°C ~ 105°C | Package / Case | 780-FBGA, FCBGA | RAM Controllers | DDR3L, DDR4 | ||
| REACH Compliance | REACH Unaffected | RoHS Compliance | ROHS3 Compliant | SATA | SATA 6Gbps (1) | ||
| Security Features | Secure Boot, TrustZone® | Speed | 1.0GHz | Supplier Device Package | 780-FCPBGA (23×23) | ||
| USB | USB 3.0 (3) + PHY |
Overview of LS1043ASN8KNLB – QorIQ Layerscape ARM Cortex‑A53 4‑Core 1.0 GHz
The LS1043ASN8KNLB is an NXP QorIQ Layerscape microprocessor IC based on a quad‑core, 64‑bit ARM Cortex‑A53 core complex running at 1.0 GHz. It targets embedded networking and industrial infrastructure designs that require a compact, highly integrated processor with flexible I/O for edge and small‑form‑factor systems.
Designed for applications such as branch routers, vCPE, IoT gateways and industrial control, the device combines multi‑core processing with packet‑processing offload and integrated peripherals to deliver scalable performance and simplified system design.
Key Features
- Core Quad ARM® Cortex®‑A53 64‑bit processor complex operating at 1 GHz with a large L2 cache to support multi‑threaded embedded workloads.
- Memory Integrated memory controller support for DDR3L and DDR4 memory technologies to match system performance and power goals.
- Networking & I/O Flexible Ethernet configurations including multiple 1 GbE ports and options combining a 10 GbE port with additional 1 GbE ports; includes an on‑chip Frame Manager for hardware packet parsing, classification and policing.
- High‑Speed Interfaces Multi‑protocol SerDes supporting high‑speed interfaces, plus up to three PCI Express (PCIe) Gen2 interfaces as described in the product documentation for system expansion.
- Storage & USB Integrated SATA 6 Gb/s (SATA 3.0) and three USB 3.0 interfaces with PHY support for modern storage and peripheral connectivity.
- Security Hardware security features including Secure Boot and ARM TrustZone® to enable trusted system boot and trusted execution environments.
- Packet Offload & Acceleration QorIQ Data Path Acceleration Architecture (DPAA) and integrated security engine (SEC 5.4) enable packet processing and inline IPsec offload to reduce CPU overhead and support multi‑Gb/s throughput.
- Package & Temperature Supplied in a 780‑FCPBGA (23 × 23 mm) surface‑mount package; qualified for operation from 0 °C to 105 °C.
- Compliance RoHS compliant.
Typical Applications
- Branch Office Routers Use the quad‑core Cortex‑A53 complex and integrated frame processing to handle routing, firewall and WAN aggregation tasks in compact routers.
- vCPE and Edge Appliances Hardware offloads and flexible I/O enable virtualized customer premises equipment and edge compute appliances to meet throughput and integration needs.
- IoT & Multi‑Protocol Gateways Combines multiple Ethernet ports, serial/legacy protocol support and security features for protocol translation and secure edge connectivity.
- Industrial PLC and Control Fanless, small‑form‑factor system support and industrial temperature range make the device suitable for control and automation applications.
- Security Appliances Integrated SEC engine and Frame Manager allow inline IPsec and packet processing for secure networking devices.
Unique Advantages
- Highly integrated networking I/O: Multiple Ethernet port configurations, PCIe, SATA and USB 3.0 reduce external controller requirements and simplify board design.
- Packet processing offload: Frame Manager and DPAA offload engines enable high throughput (multi‑Gb/s class) packet handling with lower CPU overhead.
- Secure boot and trusted execution: Secure Boot and TrustZone® support help establish a trusted platform foundation for embedded and edge use cases.
- Memory flexibility: Support for DDR3L and DDR4 memory controllers lets designers optimize for cost, performance, and power.
- Compact package for space‑constrained designs: 780‑FCPBGA (23 × 23 mm) surface‑mount package facilitates small‑form‑factor implementations.
Why Choose LS1043ASN8KNLB?
The LS1043ASN8KNLB positions itself as a flexible, integrated processor for edge networking and industrial infrastructure where multi‑core 64‑bit processing, hardware packet acceleration and rich I/O are required in a compact package. Its combination of ARM Cortex‑A53 cores, packet offloads, and integrated peripheral interfaces helps reduce BOM and system complexity for small‑form‑factor designs.
This device is suited to teams building branch routers, vCPE devices, IoT gateways, industrial controllers or security appliances that need a trusted platform with adaptable networking and storage interfaces, while retaining the option to scale through standard memory and PCIe expansion.
Request a quote or submit an RFQ to receive pricing and availability for LS1043ASN8KNLB. Our team will respond with current lead times and procurement options to help move your design forward.

Date Founded: 2006
Headquarters: Eindhoven, North Brabant, Netherlands
Employees: 38,000+
Revenue: $10.53 Billion
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