STM32MP1 QFN Style Solder-Down Computer On Module

Our new QSMP Series is a QFN Style Solder-Down Computer On Module. The module with a small square size of 27mm and a height of 2.3mm is single-sided assembled. Its QFN type lead style has a 1mm pitch with 100 pads. The ground pad additionally acts as thermal pad. 

QFN Style Computer On Module Advantages

Since industrial applications lead to faster, higher integrated and lower power electronic circuits with a smaller formfactor, the PCB layout becomes more and more important. With a good layout many EMI problems can be minimized to meet the required specifications. It's not only the pinout which should lead to an easy wiring without the need for crossings. It has also to provide a proper solution for the signal path back to the module. If this return path, mostly the ground plane, cannot be connected near the signal pin, the return current has to take another way and this may result in a loop area.

With the special design of KaRo's QSMP Series you profit from different advantages.

  • Large ground pad on the bottom side makes a defined ground plane connection available for all signals.
  • The pinout leads to an easy wiring without crossing.
  • Ground will be connected near the signal pin to avoid loop areas.
  • High speed signals can be routed on the top layer at a defined impedance.
  • Ground pad holds the component at a defined height during soldering.
    • Processor STM32MP1 Series
    • Dual-Core ARM Cortex -A7 650 MHz and Cortex -M4 209 MHz
    • 128MB up to 512MB DDR3L RAM
    • 128MB SLC NAND or 4GB eMMC
    • Display Interface:
      • 24-bit RGB
      • MIPI DSI (2-lanes)
    • 3D GPU: Vivante, OpenGL ES 2.0
    • Connectivity:
      • Ethernet
      • USB 2.0
      • eMMC/SD
      • UART
      • I²C
      • SPI
      • PWM
      • SAI
      • CAN
    • Temperature -25°C to 85°C (eMMC) / -40°C to 85°C (NAND)
    • Dimensions (LxWxD) 27mm x 27mm x 2.3mm

    Software Support:

    • Linux
    • STM32MP151A
    • 128 MB SDRAM
    • 28 MB SLC NAND Flash
    • Display-IF 24-bit RGB
    • -40° C to 85° C
    • STM32MP153A
    • 256 MB SDRAM
    • 128 MB SLC NAND Flash
    • Display-IF 24-bit RGB
    • -40° C to 85° C
    • STM32MP157C
    • 512 MB SDRAM
    • 4 MB eMMC
    • Display-IF 24-bit RGB + 2-lane MIPI-DSI
    • -25° C to 85° C

    Benefit by using QS module family



    With only 27mm x 27mm the QS module family has very compact dimensions. They include a complete embedded System on Module with processor, PMIC, RAM and flash memory.

    Because of the very dense packaging on the top side, there are no components on the bottom side of the module, cut-outs on the base board are not required. The pin compatible family concept provides all important interfaces needed for embedded designs, e.g. USB, Gigabit-Ethernet, display and many serial interfaces.





    All signal connections are located at the module edges, allowing easy optical inspection during production.
    The modules can be assembled by automatic pick & place machines without any mechanical assembly work necessary.
    The pin-optimized QS concept enables the use of a simple, cost-effective 2-layer base board.

    To support a quick evaluation and project start, a starter kit, with included schematics and bill of materials, is available.


    Flexibility, high performance and easy integration


    Target Markets

    Embedded computing power is very much in demand in a growing number of multimedia-centric devices. The Ka-Ro QSMP is ideally suited for target markets requiring high-end devices for powerful images and impressive video streaming creating connected devices in the following vertical markets.

    • Automation
    • Medical technology
    • Industrial control
    • Digital signage
    • Transportation

    Processor features

    A general-purpose microprocessor portfolio enabling easy development for a broad range of applications, the STM32MP1 series is based on a heterogeneous single or dual Arm Cortex-A7 and Cortex-M4 cores architecture, strengthening its ability to support multiple and flexible applications, achieving the best performance and power figures at any time.

    For more information regarding the STM32MP1 Series go to st.com

    Module Connectivity

    • Ethernet
    • USB 2.0
    • eMMC/SD
    • UART
    • I²C
    • SPI
    • PWM
    • SAI
    • CAN
    STM32MP1 QFN Style Solder-Down Computer On Module