ST75MMTR

Overview

The ST75MMTR is a flexible power line communication System on Chip combining a high-performing PHY processor and a protocol controller core. It implements the turnkey METERS AND MORE protocol standard with a fully integrated analog front end (AFE) and line driver in a single chip. The device features a configurable DSP core for robust B-PSK modulation at 4.8 kbps, with optional high-speed Q-PSK and 8-PSK modes up to 28.8 kbps. It includes an embedded AES-128 encryption engine, a host controller UART interface up to 57.6 kbps, and a single-ended power amplifier delivering up to 1 A rms. Packaged in a 48-VFQFPN (7x7 mm) exposed pad format, it operates from -40 °C to +85 °C.

Feature Summary

• METERS AND MORE compliant System on Chip with integrated PHY, protocol controller, and AFE
• Configurable DSP core supporting B-PSK (4.8 kbps) and optional Q-PSK/8-PSK (up to 28.8 kbps)
• Fully integrated analog front end with PGA, ADC/DAC, and single-ended power amplifier (1 A rms)
• Embedded AES-128 encryption engine and up to 57.6 kbps UART host interface

Applications

• Smart Grid solutions requiring compact and cost-effective power line communication
• CENELEC EN50065, ARIB, and FCC part 15 compliant applications
• EN50065 compliant applications in the 125- to 140-kHz frequency band

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. The 'TR' suffix typically indicates Tape & Reel packaging, but exact quantities and reel dimensions must be confirmed via the manufacturer's datasheet or authorized distributor catalogs to ensure compatibility with automated assembly processes.

Selection Notes

Select this component for applications requiring a turnkey METERS AND MORE protocol implementation. Ensure the host system supports the required UART interface speeds up to 57.6 kbps. Verify that the application environment falls within the specified -40 °C to +85 °C operating temperature range and that the power supply constraints for the digital I/O (3.3 V or 5 V) and power amplifier (8 to 18 V) are met.

Part Context

The ST75MM is part of STMicroelectronics' portfolio of power line communication SoCs designed for smart grid infrastructure. It integrates the physical layer processing, data link layer protocols, and analog signal conditioning into a single VFQFPN48 package, reducing board space and component count compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.