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Embedded module TQMa28

with ARM9 based on i.MX28

ARM9 module with i.MX28 from NXP


  • Low-cost due to highest levels of integration
  • Compact dimensions
  • Extended temperature range
  • 2x IEEE1588 Ethernet (L2 Switch)
  • Low power consumption (typ. 1 W)
  • Long-term availability
  • Power management
  • IEC 61850 stack

  • Base


    The TQMa28 Minimodule, based on the i.MX28 pro­cessor from NXP, offers a balanced ratio between computing and graphic performance. The basis for this is an ARM926 core with up to 450 MHz. The realised memory on the module provides best system support. The module is best suited for smart metering and for easy visualization and control applications. A large number of interfaces and module functions are imple­mented in the CPU due to the high level of interface and function integration. This allows the basic board to be developed easily and at low-cost. All the processor’s functional pins are on the module plug-in connector. IEC 61850 TQ and SystemCORP provide first-class solutions on the basis of the TQMa28 for intelligent networks on the basis of the IEC 61850 norm. SystemCORP has developed the software stack and adapted to the TQMa28 within the last years from the academic approach to the industrial maturity. For further information regarding SystemCORP and IEC 61850 please click here. IEC 62439-3 Our partner netModule offers IEC62439 PRP for industrial Ethernet based on TQMa28. For further information regarding netModule and IEC62439 please click here. Note about the ordering information: Further variants are available on request.

  • Detail




    NXP i.MX283, i.MX287 (ARM9 Architecture)

    CPU frequency:

    Up to 450 MHz

    System interfaces


    1x USB 2.0 High-Speed On-the-Go System interface | 1x USB 2.0 High-Speed HOST interface


    Up to 2x CAN 2.0B

    Ethernet 10/100 Mbit (L2 Switch):

    Up to 2x


    Up to 2x


    Up to 2x


    Up to 5x

    SSI / I²S:

    Up to 2x

    Other interfaces & busses


    CPU JTAG Interface




    Up to 8x 12-Bit


    Up to 8x



    26mm x 40mm

    Temperature range, extended:

    -40°C ... +85°C





    Power supply:

    5 V

    Temperature range:

    -25°C ... +85°C

    Temperature sensor:



    In Production

    System connector:

    Board-to-board plug-in system (160 pins)

    Plug system:



    5 V



    0 / 64 KByte


    Up to 256 MByte

    e-MMC Flash:

    Up to 16 GB

    Operating systems / User interfaces

    Operating systems:

    Linux, WinCE 6.0, QNX

    Operating systems on request:


    Supported software:

    IEC 61850 stack





    24 bit TFT Interface

  • Downloads

    for Embedded module TQMa28

  • Ordering


    i.MX287 / 450 MHz, 2 GB eMMC, 128MB DDR2, 64kB EEPROM, Extended temperature range from -25°C...+85°C

    i.MX287 / 450MHz, 4 GB e-MMC, 128MB DDR2, 64kB EEPROM, Boot EEPROM, Extended temperature range from -40°C…+85°C

    i.MX287 / 450MHz, 4 GB e-MMC, 128 MB DDR2, 64kB EEPROM, Boot EEPROM, Extended temperature range from -25°C…+85°C

    i.MX287 / 450MHz, 4 GB e-MMC, 128 MB DDR2, 64kB EEPROM, Boot EEPROM, Supervisor 5V, Extended temperature range from -25°C…+85°C

    i.MX287 / 454MHz, 8GB eMMC-Flash, 256MB DDR2-SDRAM, 64kB EEPROM, Boot-EEPROM (-25 - +85°C)

    STKa28 (Eval Kit) with TQMa28-AA, i.MX287/450 MHz, 128 MB DDR2, 8 GB eMMC flash, 64-kbit EEPROM, 1x RS232, 1x RS485, GPIO 4x IN/ 8x OUT, 2x CAN 2.0 B isol., 2x USB 2.0 HOST, 2x ETH 10/100, Stereo Out, Mono Mic In, RTC, Temperature sensor, Reset button, SD interface, Power Supply, 2 GB SD card, Z-Modem Cable

    Other configurations on request

  • Support

    Scope of support: Our Field Application Engineers are pleased to assist you with words and deeds before, during and after your design phase. Read more about the >>> scope of support. Downloads: The latest documentation like product data sheets, manuals, application notes or software and driver are available in the „Downloads“ section on this page. Support Wiki: Extensive software information like BSP documentation, FAQs, application notes, example codes and tips & tricks are available in the >>> TQMa28 Support Wiki. Contact: We are pleased to answer further questions. Please use our >>> support form to contact us.

  • Extended benefits

    At TQ you not only get first-class embedded systems - we also provide a series of benefits around the embedded module:
    We support you in defining your requirements for your project. The technical specification serves as guideline for all persons that are involved in the development process. For a fast and easy starting-up we provide starter kits. Through the plug-and-play principle, the software evaluation can be started, if the actual target hardware is not yet available. Due to this a product can be launched faster, reasonably priced and more safely.
    We support you concerning the selection of components as well as Obsolescence management. Thus your products are protected against obsolete components, complex redesigns, doubtful sources and cost-intensive brokerwares.
    If desired we arrange a circuit diagram review for your baseboard directly by the developer of the module. Due to the longtime experience of our developers, it happens quite often that entrapments are indentified in the course of the review.Supply of Software, especially Board Support Packages and hardware-close driver for the required operating system. Therefore you shorten your development time and reduce your costs.
    Starting-up of your baseboard. In case that the starting-up of your baseboard with our module does not work at once, we support you by a structural fault analysis in order to quickly find the reason and repair it. We provide you with reference notes to power-on's e.g. power-on of a CAN controller to the local bus, as well as with application notes.Our Field Application Engineers are pleased to assist you with words and deeds before, during and after your design phase.
    As system service provider TQ is able to take over the development, production and test of your baseboard. Therefore you get the whole tested unit from one hand. Please just ask us. We are pleased to consult you!


Our Field Application Engineers offer support during all phases of a project, from consulting and design-in to after-sales assistance. Current data sheets and product catalogs can be found in our Download Center.


In our Support-Wiki, you can find extensive information about software, tipps and applications as well as product documentation.

TQ - Technology in Quality

TQ stands for technology with highest quality standards. For us this name represents a challenge which we do our best to meet at every single step of the process – from the original idea right through to the finished product. We see ourselves in this context as partners for our customers and support them in the pursuit of their strategic objectives. As a corporate group we cover the whole bandwidth of this comprehensive product and service spectrum and we can thus meet the special wishes of all our customers with great flexibility. TQ – your reliable partner for the whole world of electronics.

  • TQ offers the complete range of services - from concept to finished product.
  • All services are available on a modular basis or as a complete package - highly customized.
  • Our product range covers various areas such as drive motors as well as minimodules.
  • Embedded modules enable cost-efficient and timesaving solutions to keep up with today’s rapidly developing high technology market.