NXP Semiconductors LS102MA-SW-ASK

Overview

LS102MA-SW-ASK from NXP Semiconductors (formerly Freescale) is a dual-core ARM1136J-based communications processor SoC optimized for enterprise-class VoIP, security appliances, and 802.11n access points. It delivers up to 1600 DMIPS at 650 MHz, integrates dual GbE MACs, PCIe 2.0 lanes, TDM/PCM for glueless VoIP, USB 2.0 with PHY, and a dedicated packet & QoS coprocessor for hardware-accelerated Layer 2–4 classification, scheduling, and rate limiting.

For engineers reviewing the LS102MA-SW-ASK datasheet, LS102MA-SW-ASK pinout, LS102MA-SW-ASK application, or LS102MA-SW-ASK equivalent, key selection criteria include dual ARM11 core frequency scaling (450–650 MHz), integrated VoIP acceleration (G.711/G.729/T.38), low-power operation (<1.5 W typical), DDR2 memory controller support, and PCIe 2.0 endpoint/root capability in a 23 mm × 23 mm PBGA-621 package.

Technical Context

The LS102MA-SW-ASK implements two ARM1136J cores with independent 64 KB L1-I and 64 KB L1-D caches, 32 KB tightly coupled memory (TCM) per core, and a shared 128 KB SRAM. Its packet & QoS coprocessor offloads Layer 2–4 forwarding decisions, enabling hardware queuing, classification, marking, and rate limiting without CPU intervention.

System-level connectivity includes dual GbE MACs supporting RGMII/GMII/RMII/MII, two PCIe 2.0 lanes configurable as root or endpoint, TDM/PCM interface for direct VoIP codec interfacing, USB 2.0 high-speed host/device with integrated PHY, and a 32-bit DDR2 memory controller - all interconnected via an AMBA AHB crossbar for non-blocking concurrent transactions.

Key Specifications

Pinout & Package

Packaged in a 23 mm × 23 mm, 1.0 mm pitch PBGA-621 with thermal pad. Pinout defined per LS102MAFS REV 1 datasheet, including dedicated SerDes lanes, DDR2 DQ/DQS groups, GbE MDIO/MDC, PCIe REFCLK, TDM frame sync/clock/data signals, and JTAG debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LS1021A-SW-ASK and MPC8315EVRAGDB, the LS102MA-SW-ASK uniquely balances ARM11-based VoIP optimization, ultra-low power, and integrated TDM-making it the only option among the three that delivers full G.729/T.38 acceleration and sub-1.5 W operation in a single SoC for cost-sensitive voice gateways.

Availability

LS102MA-SW-ASK is available at Aetrix Electronics and suitable for high-end VoIP gateways, SMB security appliances, and enterprise 802.11n access points requiring stable component supply, long-term lifecycle assurance, and qualified industrial temperature grade availability.

Supply support for LS102MA-SW-ASK 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 markets, with deep heritage in communications processors from its Freescale acquisition.

The QorIQ LS1 family-including LS102MA-SW-ASK-is designed specifically for cost-optimized, low-power networking edge devices requiring enterprise-grade throughput, integrated VoIP, and hardware-accelerated QoS in compact form factors.

FAQ

What is the maximum operating frequency of the LS102MA-SW-ASK?

The LS102MA-SW-ASK operates at up to 650 MHz across its dual ARM1136J cores. Frequency is factory-configured and fixed per unit; 450 MHz and 533 MHz variants also exist but LS102MA-SW-ASK specifically ships at 650 MHz. This frequency enables 1600 DMIPS performance while maintaining <1.5 W typical power consumption, critical for thermally constrained gateways and access points.

Does the LS102MA-SW-ASK support DDR3 memory?

No, the LS102MA-SW-ASK integrates a 32-bit DDR2 memory controller only, supporting DDR2-400 to DDR2-800 speeds. It does not support DDR3 or LPDDR2. Systems requiring DDR3 must use alternatives like the LS1021A-SW-ASK. The DDR2 interface includes programmable drive strength and on-die termination for reliable operation across industrial temperature ranges.

Is the TDM interface on the LS102MA-SW-ASK compatible with standard SLIC devices?

Yes, the LS102MA-SW-ASK's TDM/PCM interface supports industry-standard 8/16/32-slot framing at 1.536–8.192 MHz and is electrically compatible with common SLICs such as the Si3217x and LE89316. It provides frame sync, bit clock, and serial data signals with configurable polarity and delay, enabling glueless integration in VoIP gateways and secure terminals without level-shifting or protocol translation.

Can the LS102MA-SW-ASK operate in industrial temperature range?

Yes, the LS102MA-SW-ASK is qualified for industrial temperature operation (–40°C to +105°C case temperature) per its datasheet specification. This rating is validated across all I/O interfaces, DDR2 controller, and internal voltage regulators, making it suitable for deployment in uncontrolled environments such as outdoor access points, factory-floor security appliances, and payment kiosks.

What software development tools are supported for the LS102MA-SW-ASK?

The LS102MA-SW-ASK is supported by the QorIQ LS102MA OpenWRT Linux SDK, which provides full BSP, kernel drivers, and userspace libraries for dual-core operation. NXP also offers CodeWarrior Development Studio for ARM and Lauterbach TRACE32 for JTAG-based debugging. All software deliverables are backward compatible with other LS1 family devices, ensuring reuse across product generations.