ST Life.augmented


Single-phase with tamper monitoring energy metering demonstration board with CT and shunt based on the STPM33
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The STPM33 energy metering evaluation board is a class 0.2, single-phase meter which includes tamper monitoring, CT and shunt current sensors for power line systems with Vnom= 140 to 300 V(RMS), Inom/ Imax= 5/100 A(RMS), flin= 50/60 Hz ± 10% and Tamb= -40 to +85 °C.

Measured active/reactive power can be output from two programmable LEDs on the board.

The board can be interfaced with a PC running evaluation software through an isolated RS232 port, or through the STEVAL-IPE023V1 USB isolated interface tool for configuration and data reading.

The board also has SPI/UART pins available to interface a microcontroller for application development.

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Data Brief

Key Features

  • 0.2% accuracy single-phase meter with tamper monitoring
  • Vnom(RMS)= 140 to 300 V, Inom/Imax(RMS)= 5/100 A, flin= 50/60 Hz ± 10%
  • Tamper detection though neutral current monitoring
  • Connector for USB isolated hardware programmer tool STEVAL-IPE023V1 and PC GUI
  • RS232 and UART isolated connectors to PC GUI
  • SPI/UART switch for device peripheral selection
  • 2 programmable LEDs on board
  • Digital expansion to external system-on-chip or MCU
  • 3.3 V power supply: external or through STEVAL-IPE023V1 isolated USB board
  • IEC61000 standard compliant
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2284: Single-phase energy metering evaluation board with tamper monitoring, CT and shunt current sensor based on the STPM33
1.0 527 KB

Application Notes

Description Version Size
AN4470: The STPM3x application calibration
1.1 1,485 KB

User Manual

Description Version Size
UM1719: The STPM3x evaluation software
1.1 1,324 KB
UM1748: EVALSTPM34, EVALSTPM33, EVALSTPM32 evaluation board
1.1 1,211 KB

Presentations & Training Material


Description Version Size
STPM32, STPM33, STPM34 Smart Metering ICs
825 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
214 KB

Bill of Materials

Description Version Size
36 KB

Schematic Pack

Description Version Size
31 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-STPM001 STPM32/33/34 evaluation software

Publications and Collaterals


Description Version Size
730 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVALSTPM33ActiveSTPM33-No availability reported, please contact our Sales officeEcopack1-

(*) 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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