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SoM-100ES with SODIMM SoM-400EM Installed

SoM-250ES Frontside with WVGA LCD

SoM-250ES Backside shown with SoM-9G45
(SoM-9G45 Not Included)





Adobe PDF Document SoM-250ES Manual

The SoM-250ES is a compact, low-power SoM Carrier/Socket board with an optional 7” WVGA (800 x 600) color LCD and resistive touch screen. This versatile SoM Carrier/Socket board is ideal for evaluation and early development work. This Carrier is designed to work with all EMAC 200-pin SODIMM type SoMs. Note: The SoM-250ES is specifically designed for SoMs with Video & USB capability.

The SoM-250ES provides access to much of the SoM's I/O through on-board connectors as well as a number of additional I/O expansion blocks such as Video, Touchscreen, Ethernet and Micro HCSD/MMC flash disk.

Although a good deal of customers will want a Carrier that is unique and is designed specifically for their application, the SoM-250ES when coupled with a SoM-9G45/9M10 SODIMM SoM makes for a powerful User Interface Control System with USB and Ethernet capabilities. This allows the user to gather data and respond with Control commands via the Internet.

Custom CarrierWhen a unique custom board is required, the amount of design work required is greatly minimized by the SoM approach. The custom Carrier designer does not have to worry about the processor, memory, and standard I/O functions and can concentrate on the I/O, connectors and dimensional aspects required for the application.

In situations where a custom Carrier is required but the customer does not have the capability to design such a board in-house, EMAC's Custom to Order Services (COS) can be utilized (see Custom Carrier example on right). Using COS the customer can select from a library of standard I/O blocks. These blocks can be put together quickly into a form-factor of the customer's choosing, providing prototypes in as little as 30 days.

SoM Benefits

  • Faster time to market
  • Cost savings
  • Reduced risk
  • Scalable CPU choices
  • Decreased customer design requirements
  • Small footprint


  • 10/100 BaseT Ethernet with onboard Magnetics and RJ45
  • 3 serial RS232 ports and 1 RS232/422/485 port
  • 32 SoM Specific I/O lines
  • Resistive Touhscreen interface
  • 7", 800 x 600 Graphic LCD with Touchscreen
  • Battery for nonvolatile RAM and Real Time Clock
  • Micro SDHC/MMC Flash Card Socket
  • 1 USB Host & 1 USB OTG ports
  • 1 I2S Audio port with Line-In/Line-Out
  • 1 Audio Beeper
  • Timer/Counters and Pulse Width Modulation (PWM) ports
  • Operating Voltage of 12 to 26 Vdc.
  • Graphic LCD Interface with optional 2D acceleration & hardware CODECs
  • System Reset button
  • Power and Flash Drive Status LEDs



  • 10/100 BaseT Ethernet with onboard Magnetics and RJ45 Jack
  • Battery for nonvolatile RAM and Real Time Clock
  • 1 USB Host & 1 USB OTG ports
  • Micro SDHC/MMC Flash Card Socket
  • 3 serial RS232 ports and 1 RS232/422/485 port
  • 32 SoM Specific I/O Lines
  • System Reset button


Mechanical and Environmental

  • Dimensions:7.55" L x 4.15" W x 1.5" H
  • Power Requirements: Typical <~350mA. @ 12 Vdc including SoM, USB & LCD
    (Note: up to 1.0A additional is required if USB Host is providing power to USB devices)
  • Power Supply Voltage: +12 to +28 Vdc.
  • Operating Temperature: 0~60 C (32~140 F), fanless operation
  • Operating Humidity: 0%~90% relative humidity, non-condensing

PRICING (Single Unit Pricing. Includes: Integration, Setup,Testing, & Enhanced Support)
(Includes Development CD with IDE & Drivers; NO MODULE)

SoM-250ES-000 .. SoM-250ES StAndARD Carrier Board with 7" LCD


SoM-250ES-007 .. SoM-250ES Bare Bones Carrier



EMAC can build the SoM-250ES with any option mix you require. Build-To-Order can offer a significant cost savings when only a certain subset of options are needed! 25 piece minimum required.

Option Pricing

SoM-9G45M-120 .. w/ AT91SAM9G45 CPU, 256 MB FLASH 128 MB RAM


SoM-9M10M-130 .. w/ AT91SAM9M10 CPU, 1 GB FLASH 256 MB RAM


SoM-3517M-xxx .. w/ AT91SAM9M10 CPU, 1 GB FLASH 256 MB RAM


PER-PWR-00035 .. 12 v @ 2.1A Wall PS (110 V @ 60 HZ US)


Additional Options:
System on Modules (SoMs)
Custom and Semi-custom Engineering Services

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