MPL485AT-I/AJA

The MPL485AT-I/AJA is a Microchip Technology microprocessor IC based on an ARM® Cortex®-M4 core running at 100 MHz. Engineered for embedded and industrial applications, this 32-bit single-core device combines deterministic processing, integrated interfaces and hardware security primitives to support communications and control tasks.

As part of the PL485 family, the device is designed to support narrowband power-line communication (NB-PLC) modem functionality and PLC protocol implementations, with available firmware examples and protocol implementations provided by the vendor for connectivity and network topologies.

Key Features

• Core ARM® Cortex®-M4 32-bit processor running at 100 MHz for responsive embedded control and signal processing.
• Memory Interface SRAM memory controller for system memory management and fast on-chip data access.
• Security Hardware AES support with 128, 192 and 256-bit key sizes to enable encrypted communications and secure data handling.
• Connectivity Integrated USB 2.0 interface (1) and DMA support to simplify data transfer and peripheral integration.
• PLC-Focused Firmware Support PL485 family firmware examples and reference implementations for NB-PLC protocols (including ITU-T G.9903 and G.9904) to accelerate modem and network development.
• Package and Mounting 121‑TFBGA (10 × 10 mm) supplier device package, surface-mountable for compact PCB layouts.
• Industrial Grade Operation Specified operating temperature range from −40 °C to 85 °C for deployment in industrial environments.
• Environmental Compliance RoHS compliant for regulatory and manufacturing alignment.

Typical Applications

• Smart Grid and AMI Implement narrowband PLC modems and mesh networking for advanced metering infrastructure and grid communications.
• Industrial Automation Use as an embedded controller for PLC-based connectivity and control tasks in industrial monitoring and telemetry systems.
• Smart Metering Enable secure, protocol-capable communication stacks for utility metering devices requiring robust field communications.
• Building and Home Automation Support PLC-based device connectivity and routing for distributed sensors and control nodes in commercial and residential installations.

Unique Advantages

• Protocol-ready SoC: Leverages PL485 family firmware and protocol implementations to shorten development time for NB-PLC solutions.
• Deterministic 32-bit processing: ARM Cortex‑M4 at 100 MHz provides the compute headroom needed for control tasks and protocol stacks.
• Hardware security primitives: AES 128/192/256 support enables strong encryption for communications and stored data.
• Integrated USB and DMA: On-chip USB 2.0 and DMA reduce system complexity and improve throughput for peripheral data flows.
• Industrial temperature range: Rated −40 °C to 85 °C for reliable operation in demanding field environments.
• Compact BGA package: 121‑TFBGA (10 × 10 mm) package supports dense, space-constrained board designs.

Why Choose MPL485AT-I/AJA?

The MPL485AT-I/AJA positions itself as a practical, industrial-grade microprocessor option for embedded designs that require NB-PLC modem capability, secure communications and compact packaging. Its ARM® Cortex®-M4 core combined with hardware AES and USB connectivity offers a balanced mix of performance, security and integration for communication-focused embedded systems.

With firmware examples and protocol implementations available for the PL485 family, MPL485AT-I/AJA is suitable for engineering teams building metering, smart grid, industrial automation and building-automation solutions where protocol support, environmental robustness and predictable system integration are priorities.

Request a quote or contact sales to discuss pricing, availability and how the MPL485AT-I/AJA can fit into your next embedded or PLC-based design.