NXP Semiconductors LS1046ASE8T1A,557

Overview

LS1046ASE8T1A,557 from NXP Semiconductors is a quad-core 64-bit Arm Cortex-A72 system-on-chip (SoC) operating up to 1.8 GHz, featuring 2 MB shared L2 cache, DDR4 memory controller with ECC, and integrated Data Path Acceleration Architecture (DPAA) for packet processing, cryptography, and IEEE 1588 timing. It targets enterprise routing, network-attached storage, and secure vCPE platforms.

For engineers reviewing the LS1046ASE8T1A,557 datasheet, LS1046ASE8T1A,557 pinout, LS1046ASE8T1A,557 application, or LS1046ASE8T1A,557 equivalent, key selection criteria include SerDes lane configuration (8 lanes supporting PCIe 3.0, SATA 6 Gb/s, and up to five SGMII 1000BASE-T interfaces), DPAA hardware acceleration for real-time packet classification and queue management, and thermal/power characteristics for fanless embedded deployment.

Technical Context

The LS1046ASE8T1A,557 implements a CCI-400™ coherency fabric interconnecting four identical Cortex-A72 cores in a single cluster, each with 32 KB L1 data and 48 KB L1 instruction cache. Its hierarchical interconnect operates up to 700 MHz and supports cache-coherent DMA via qDMA and eDMA controllers.

Hardware acceleration is distributed across dedicated DPAA blocks: Frame Manager (FMan) handles packet parsing and distribution; Queue Manager (QMan) provides scheduling and congestion control; Buffer Manager (BMan) manages hardware buffer pools; Security Engine (SEC) delivers AES, SHA, and RSA acceleration; all synchronized under IEEE 1588 timestamping support for deterministic networking.

Key Specifications

Pinout & Package

LS1046ASE8T1A,557 uses a 780-ball Fine-Pitch Ceramic Ball Grid Array (FC-PBGA) package with 23 mm × 23 mm footprint and 0.8 mm ball pitch. Pin functions are organized by subsystem: DDR4 memory interface (D1_MAxx, D1_MDQxx, D1_MDQSxx), Integrated Flash Controller (IFC_ADxx, IFC_CSx_B), dual DUART (UART1/2_SIN/SOUT/RTS/CTS), eight SerDes lanes (SD1_TX/RX0–3, SD2_TX/RX0–3), and dual Ethernet MAC interfaces (EC1/EC2_TXD/RXD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1026ASE7KQB,557, the LS1046ASE8T1A,557 delivers 2× CPU throughput and dual-channel DDR4 for memory-bound DPAA workloads; versus ARMADA 8040, it offers superior hardware offload depth for encrypted packet processing and sub-microsecond time synchronization - critical for industrial TSN and carrier-grade vCPE.

Availability

LS1046ASE8T1A,557 is available at Aetrix Electronics and suitable for enterprise routing, network-attached storage, and virtual CPE applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for LS1046ASE8T1A,557 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 communications markets, with core expertise in Arm-based processing, RF, and embedded security.

The LS1046A product line delivers scalable, power-efficient QorIQ communications processors targeting next-generation edge infrastructure - designed specifically for high-performance, low-power embedded networking where hardware acceleration and real-time determinism are mandatory.

FAQ

What is the maximum DDR4 data rate supported by LS1046ASE8T1A,557?

The LS1046ASE8T1A,557 integrates a single 32-bit/64-bit DDR4 SDRAM memory controller supporting up to 2.1 GT/s (DDR4-2133). This enables sustained memory bandwidth of 17 GB/s in 64-bit mode with ECC enabled, sufficient for DPAA packet buffering and multi-threaded Linux application workloads. The controller supports both single-rank and dual-rank DIMMs with configurable timing parameters per JEDEC standards.

Does LS1046ASE8T1A,557 support IEEE 1588 Precision Time Protocol hardware timestamping?

Yes, LS1046ASE8T1A,557 provides full hardware IEEE 1588 timestamping capability across its dual Ethernet MAC interfaces (EC1 and EC2) and SerDes-based XFI/SGMII links. The on-die timestamp unit captures ingress/egress packet timestamps with sub-100 ns resolution and supports PTP boundary clock and transparent clock modes - essential for time-sensitive networking in industrial automation and telecom fronthaul.

How many PCIe 3.0 lanes does LS1046ASE8T1A,557 provide, and how are they allocated?

The LS1046ASE8T1A,557 provides three independent PCIe 3.0 controllers using its eight SerDes lanes: one controller supports x4 mode, another x2, and the third x2 - allowing simultaneous connection of a 4-lane NVMe SSD, dual 2-lane peripherals (e.g., FPGA co-processor and Wi-Fi 6 radio), or other combinations. Lane allocation is configured via RCW (Reset Configuration Word) and validated in the SerDes initialization sequence.

What boot sources are supported by LS1046ASE8T1A,557?

LS1046ASE8T1A,557 supports multiple boot sources including Quad SPI flash (QSPI_A/B), NAND/NOR flash via Integrated Flash Controller (IFC), microSD/eMMC via eSDHC controller, and USB mass storage devices. Boot mode is selected by configuring RCW bits via IFC_AD[0:7] pins at reset; secure boot validates signed images from primary source before execution, enforcing chain-of-trust integrity.

Is LS1046ASE8T1A,557 pin-compatible with other LS1046A variants such as LS1046ASN8PQA?

Yes, LS1046ASE8T1A,557 is fully pin-compatible with all LS1046A family members, including LS1046ASN8PQA, as confirmed by NXP's 780 FC-PBGA mechanical specification and identical ball map layout. Differences between variants (e.g., frequency grade, thermal spec, or mask set) do not affect pin function mapping, power domain assignment, or signal integrity requirements - enabling drop-in replacement in existing designs with appropriate software/firmware updates.