Programmable power-line communication modem system-on-chip

The ST8500 is a fully programmable power line communication (PLC) modem System on Chip (SoC), able to run any PLC protocol in the frequency band up to 500 kHz.

The device architecture has been designed to target CENELEC EN50065, FCC and ARIB compliant applications supporting all major PLC protocol standards such as ITU G.9904 (PRIME), ITU G.9903 (G3-PLC®) and many other possible PLC protocol specifications and evolutions.

Key Features

  • Programmable power line communication (PLC) modem System on Chip
  • Integrated differential PLC analog front-end
    • PGA with automatic gain control and ADC
    • DAC with transmission pre-driver
    • Digital transmission level control
    • Zero crossing comparator
    • Up to 500 kHz PLC signal bandwidth
  • High performance, fully programmable real-time engine dedicated to PLC PHY and real -time MAC protocol management (400 MHz max. frequency)
    • Dedicated code and data SRAM memories
  • Standard ARM® 32-bit Cortex® -M4F fully programmable core for protocol upper layers and peripherals management
    • 200 MHz maximum frequency
    • 256 kB of embedded SRAM for code and data
    • 96 kB of embedded SRAM for data
    • 8 kB of embedded shared RAM
    • Bootloader ROM memory
    • One Time Programmable (OTP) memory with dedicated areas available for secure keys and user information storage
    • Serial wire and JTAG interfaces
    • 24 multiplexed GPIOs
    • 4 general purpose timers
    • 1 flexible CRC calculation unit
    • 2 USART, 1 UART, 3 SPI, 1 I2 C
  • Cryptographic engine
    • AES 128/192/256 engine
    • True random number generator
    • Pseudo random number generator
  • Clock management:
    • 25 MHz external crystal for system clock
    • Integrated 25 MHz oscillator (XOSC) with frequency synthesizer (FS) and pre-scaler units to generate internal clock signals
  • Power management
    • 3.3 V external supply voltage for I/O and analog
    • 2.5 V internal linear regulator for analog
    • 1.1 V external supply voltage for digital
    • Normal, Slow, Doze and low power modes
  • Available in QFN56 package
  • -40 °C to +105 °C temperature range


Technical Documentation

Product Specifications
Description Version Size
Programmable power line communication modem System on Chip 2.0 1 MB

Publications and Collaterals

Description Version Size
Turnkey PLC chipset for smart-energy infrastructure 10.2017 775 KB

Tools and Software

Evaluation Tools
Solution Evaluation Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity Output Current (mA) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST8500TR VFQFPN 56 7x7x1.0 Tape And Reel Active - - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office
ST8500 VFQFPN 56 7x7x1.0 Tray Active - - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST8500TR ActiveVFQFPN 56 7x7x1.0IndustrialEcopack2
ST8500 ActiveVFQFPN 56 7x7x1.0IndustrialEcopack2

(**) 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.