STMicroelectronics EVALST7590T-2

Overview

EVALST7590T-2 from STMicroelectronics is a PRIME-certified powerline communication (PLC) development kit built around the ST7590T SoC, integrating an STM32F103RG microcontroller, ALTAIR04-900 SMPS power supply, and RS232/RS485 opto-isolated host interface for smart meter and concentrator prototyping.

For engineers reviewing the EVALST7590T-2 datasheet, EVALST7590T-2 pinout, EVALST7590T-2 application, or EVALST7590T-2 equivalent, this kit delivers a complete, EN50065- and FCC Part 15-compliant reference design with embedded DLMS/COSEM libraries and full PRIME protocol stack for rapid field-deployable PLC network validation.

Technical Context

The EVALST7590T-2 implements a turnkey PRIME v1.3.6-compliant PLC node using the ST7590T SoC as the physical and MAC layer engine, paired with the STM32F103RG ARM Cortex-M3 MCU handling system management, host bridging, and application-layer execution.

It integrates a CENELEC A-band compliant analog front-end, quasi-resonant AC/DC power supply based on ALTAIR04-900, and dual isolated serial interfaces (RS232/RS485) enabling secure host communication in noisy grid environments.

Key Specifications

Availability

EVALST7590T-2 is available at Aetrix Electronics and suitable for smart meter development, PRIME-based concentrator prototyping, and in-field PLC network testing requiring stable component supply and regulatory-compliant reference hardware.

Supply support for EVALST7590T-2 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal solutions for industrial, automotive, and smart infrastructure markets.

The EVALST7590T-2 belongs to ST's STarGRID™ PLC platform family, engineered specifically to accelerate deployment of interoperable, standards-based powerline communication systems for utility AMI networks.

FAQ

Is the EVALST7590T-2 certified for PRIME compliance?

Yes. The EVALST7590T-2 is officially PRIME v1.3.6 certified and meets CENELEC EN50065-1 spectral mask requirements and FCC Part 15 Subpart G emission limits. Certification documentation and test reports are provided by ST and Fideltronik under joint development agreement.

Does the kit include the full PRIME protocol stack and DLMS/COSEM support?

Yes. The kit ships with pre-flashed firmware containing the complete PRIME protocol stack (PHY, MAC, and convergence layers) and integrated DLMS/COSEM libraries compatible with IEC 62056-21 and IEC 62056-53, validated for smart meter data exchange over PLC.

Can the EVALST7590T-2 operate as a standalone PLC node without external host connection?

Yes. The onboard STM32F103RG executes local application logic and manages the ST7590T SoC autonomously. It supports standalone operation for network commissioning, diagnostics, and field testing - no external host required unless advanced configuration or data upload is needed.

What serial interfaces does the EVALST7590T-2 provide for host communication?

The kit provides two opto-isolated serial interfaces: RS232 (via MAX3232) and RS485 (via SP3485), both electrically isolated for safety and noise immunity. Both support baud rates up to 115.2 kbps and are accessible via standard DB9 and screw-terminal connectors.