ST Life.augmented


Smart Metering system-on-chip
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The STCOMET is a device that integrates a narrow band power line communication modem, a high-performance application core and metrology functions in a single chip.

The PLC modem architecture has been designed to address EN50065, FCC, ARIB compliant PLC applications. Together with the application core, it enables the STCOMET to support multiple narrow band PLC standards such as PRIME, IEC61334-5-1, G3-PLC, METERS AND MORE, P1901.2 and many others.

The high accuracy metrology sub-system is suitable for EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22 and IEC 62053-23 compliant class1, class0.5 and class0.2 AC metering applications.

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Errata Sheet
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Data Brief

Key Features

  • ARM® 32-bit Cortex™-M4F CPU at 96 MHz maximum frequency
  • Programmable DSP engine suitable for narrow band power line communication (NB-PLC) real-time processing
  • 1 MB embedded Flash, 128 kB embedded SRAM
  • Flexible static memory controller (FSMC)
  • Clock, reset and supply management
  • Normal and low power working modes
  • Serial wire, JTAG interfaces, Cortex-M4 Embedded Trace Macrocell™ for debugging
  • Up to 86 GPIO
  • 8 x general purpose timers, 2 x advanced timers, 1 x windowed watchdog
  • Real-time clock with battery health monitoring and integrated battery switchover
  • Direct memory access controller
  • Wide set of communication interfaces: USART, SPI, I2C, CAN
  • 12-bit analog-to-digital converters
  • Cryptographic engine supporting AES 128/192/256 with multiple modes hardware support
  • Flexible CRC calculation unit
  • Integrated high sensitivity PLC analog front-end up to 500 KHz signal bandwidth
  • Integrated dual NB PLC line driver : 14 Vp-p single ended, 28 Vp-p differential output range and 1 A rms max. current
  • Integrated metrology AFE with 3 x 24 bit ΣΔ channels with PGA and 3.6 kHz bandwidth
  • Selectable hardwired DSP for turnkey basic and advanced metrology parameters calculations
  • Less than 0.1 % error over 1:5000 range
  • SAG and SWELL detection
  • Live and neutral monitoring for tamper detection
  • Single point calibration
  • Available in a TQFP176 package

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2083: Smart metering system-on-chip
2.0 304 KB

User Manual

Description Version Size
UM1811: G3-PLC graphical user interface (GUI)
1.0 3,638 KB
UM1833: Getting started with the STCOMET development environment
1.0 869 KB

Publications and Collaterals


Description Version Size
SMArt Street lighting solutions: Remote Control Protocol Over Power Line communication
537 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOutput CurrentAutomotive GradeOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STCOMET10ActiveTQFP 176 20x20x1.0Tray_-No availability reported, please contact our Sales officeEcopack2 (**)PDF

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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