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          Products >  Discontinued Products >  MYD-JA5D2X (Atmel A5D2) > MYD-JA5D27 Development Board
MYD-JA5D27 Development Board

MYD-JA5D27 Development Board

- MYC-JA5D2X CPU Module as Controller Board
- 500MHz Atmel SAMA5D26/27 ARM Cortex-A5 Processor
- 256MB DDR3 SDRAM, 256MB Nand Flash, 4MB Data FLASH, 64KB EEPROM
- Serial ports, USB, Ethernet, RS485, TF, Audio, LCD
- One CAN Interface (Only for SAMA5D27)
- Ready-to-Run Linux 4.1

The MYD-JA5D2X Development Board is a complete evaluation platform for Atmel’s SAMA5D2 (26/27) ARM Cortex-A5 processor which supports multiple memories, including latest-generation technologies such as DDR3, LPDDR3, and QSPI Flashand is integrated with rich peripherals including the LCD & Touch controller, Camera interface, EMAC, USB HSIC and Safety IP, capable of running at up to 500MHz. The MYD-JA5D2X development boards is consist of a CPU module MYC-JA5D2X and a base board MYB-JA5D2X connected via one 200-Pin SODIMM interface. It is designed to be a complete design reference for embedded developing on the SAMA5D2X processor and designs based on MYC-JA5D2X CPU Module.

MYD-JA5D2X Development Board

The MYC-JA5D2X CPU Module has integrated the core components including the SAMA5D2 processor, 256MB DDR3, 256MB Nand Flash, 4MB Data Flash, 64KB EEPROM and 100M Ethernet PHY on board. It has been designed to support up to 512MB DDR3 and 1GB Nand Flash (or 16GB eMMC Flash) on customer demand. They can be embedded into your next design directly to speed up your time to market. A rich set of peripherals and interfaces have been brought out through headers and connectors to the MYD-JA5D2X base board including serial ports, USB Host and Device ports, one CAN port (only for SAMA5D27), one 10/100Mbps Ethernet port, RS485, TF card slot, Audio in/out, LCD, etc.






2 (2 Hosts or 1 Host/1 Device)

3 (2 Hosts/1 HSIC or 1 Host/1 Device/1 HSIC)







Comparison between 5D26 and 5D27 Devices

MYIR deliveries the MYD-JA5D2X Development Board with SAMA5D27 processor by default. The board comes along with Linux 4.1 software packages, necessary cable accessories as well as detailed documents to enable quick start when getting the goods out of box. It can support -40 to +85 Celsius extended temperature operation for industrial embedded applications. It is an excellent EVM (Evaluation Module) and a good reference design for extensively evaluation, fast prototyping and creating applications that require high efficient computing, display, audio, mass storage, networking, connectivity and more.


Mechanical Parameters

  • Dimensions: 110mm x 135mm (base board), 67.6mm x 45mm (CPU Module)
  • PCB Layers: 4-layer design (base board), 8-layer design (CPU Module)
  • Power supply: +5V/2A (base board), +3.3V/0.5A (CPU Module)
  • Working temperature: -40~85 Celsius (industrial grade)

OS Support

  • Linux 4.1

The MYD-JA5D2X Controller Board (MYC-JA5D2X CPU Module)


  • Atmel SAMA5D26, SAMA5D27
    - ARM® Cortex™-A5 processor, operates at up to 500MHz (785DMIPS)
    - 128KB of L2 cache for system performance.
    - Floating point unit (FPU) for high-precision computing and accelerated data processing.
    - 10/100 MAC with IEEE1588
    - Two HS High Speed USB ports (configurable as two hosts or one host and one device port)
    - One High Speed Inter-Chip Interface (HSIC) port
    - One 12-bit image sensor controller with Raw Bayer support
    - Graphic LCD controller with overlays for image composition
    - Advanced security features to prevent counterfeiting, secure external communication, and authenticate the system
    - Market-leading low power consumption


  • 256MB DDR3 SDRAM
  • 256MB Nand Flash
  • 4MB Data Flash

Peripherals and Signals Routed to Pins

MYC-JA5D2X Pinouts Description

  • On-board Ethernet PHY
  • One power indicator (Red LED)
  • One user LED (Blue)
  • SO-DIMM 200-pin connector brings out below peripheral signals:
    - 1 x Ethernet
    - 3 x USB (1 x Host, 1 x Device, 1 x HSIC, HSIC is only for SAMA5D27)
    - Up to 10 x Serial ports
    - Up to 7 x I2C
    - Up to 2 x CAN (only for SAMA5D27)
    - Up to 7 x SPI
    - Up to 2 x QSPI
    - 12 x 12-bit ADC (enhanced resolution up to 14 bits)
    - 4 x PWM
    - 1 x 4-bit SDIO
    - 1 x 24-bit LCD
    - Up to 2 x SSC, compatible with I2S
    - 1 x 12-bit Camera Interface
    - 1 x SMC (Supports parallel external memory interface)
    - Up to 97 x GPIOs

    Note: Some signals are reused and listed with the maximum numbers. For detailed configuration, please refer to the document of Pin-out Description.

The MYD-JA5D2X Base Board (MYB-JA5D2X)

  • Serial ports
    - 1 x 3-wire RS232 Debug serial port (DB9)
    - 1 x 3-wire RS232 serial port (DB9)
    -1 x RS485
  • USB
    - 1 x USB2.0 Host port
    - 1 x Mini USB2.0 Device port
    - 1 x USB HSIC (only for SAMA5D27, via Extension Headers)
  • 1 x 10/100Mbps Ethernet interface
  • 1 x CAN interface (only for SAMA5D27)
  • 1 x TF card slot
  • 1 x 18-bit LCD interface (supports optional 4.3-inch and 7-inch TFT LCD with resistive or capacitive touch screen)
  • 1 x 4-wire resistive touch screen interface
  • 1 x 8-bit Camera interface (J23, 2.0mm pitch 20-pin connectors)
  • 1 x MIC In
  • 1 x LINE In
  • 1 x Stereo Audio Output port (Headphone)
  • 1 x JTAG interface (2.54mm pitch, 20-pin connector, J16)
  • 1 x battery backed RTC socket
  • 4 x Buttons (Boot SEL, Reset, Wake up, User)
  • 2 x 2.0mm pitch 20-pin Extension Headers (J7 & J21)
    - 2 x SPI, 2 x UART, 1 x TWI, 1 x QSPI (some signals are reused)
  • 1 x 2.0mm pitch 20-pin Secure IO Header (J8)
  • 1 x FMC interface (DNP by default, on the bottom of the board)
  • 3 x LEDs (1 x Power, 2 x User)

Other MYIR's Atmel Products

MYS-SAM9X5 Single Board Computer

MYD-SAMA5D3X Development Board (MYC-SAMA5D3X CPU Module as core board)

MYD-SAM9X5 Development Board (MYC-SAM9X5 CPU Module as core board)

MYD-SAM9X5-V2 Development Board (MYC-SAM9X5-V2 CPU Module as core board)

MYD-SAMA5D3X-C Development Board (MYC-SAMA5D3X-C CPU Module as core board)

MYD-JA5D4X Development Board (MYC-JA5D4X CPU Module as core board)

Hardware Features

The Atmel | SMART SAMA5D2 series is a high-performance, ultra-low power Cortex-A5 processor based MPU. It supports multiple memories, including latest generation such as DDR3, LPDDR3, and QSPI Flash. It is particularly well-suited for small control panel/HMI applications and secure IoT gateway/connectivity applications. The AMA5D2 is also ideal for barcode scanners and printers as well as mid-range POS terminals that require PCI. The improved low power features and small package deliver an excellent solution for wearables and other battery-operated applications.

SAMA5D2 Series Devices

MYC-JA5D2X Function Block Diagram

MYD-JA5D2X Function Block Diagram

Dimensions of MYC-JA5D2X CPU Module

Dimensions of MYD-JA5D2X Development Board Base Board

Software Features

The MYD-JA5D2X development board is preloaded with Linux 4.1. Many of the drivers are provided in source code as shown in below table:




Source Code Provided



First level boot program



second level boot program




Linux 4.1



Mini USB

USB driver, can switch between Host and Device



10M/100Mbps Ethernet driver



MMC/SD card driver



Nand Flash driver



Industrial CAN Bus driver



RS485/RS232 serial port driver


Audio In/Out

I2S interface, wm8904 driver


LCD Controller

MYIR’s 4.3- and 7-inch LCD Module driver



RTC driver


Touch Panel

Resistive or capacitive touch panel driver



Button driver



LED driver



ADC driver



PWM driver



Yocto filesystem including QT5.5

base running environment(Qt)


Buildroot based


Compilation toolchain

Linaro GCC 4.9 hf


Relative Download and Links

You can download relative chip datasheet, products datasheet, user manual, software package from below. Any inquiry, please contact MYIR.

1 ATMEL SAMA5D2 Flayer (Revision A) 372 KB
2 ATMEL SAMA5D2 Datasheet (Revision E) 10.5 MB
3 MYC-JA5D2X CPU Module Overview 1.05 MB
4 MYD-JA5D2X Development Board Overview
1.43 MB

5 MYC-JA5D2X Dimensions 70.3 KB
6 MYD-JA5D2X Base Board Dimensions 170 KB
7 Signals Rounted to SO-DIMM 200-pin Connector
527 KB

MYD-JA5D27 Development Board

MYD-JA5D27 Development Board Base Board

MYC-JA5D27 CPU Module

Price and Ordering


Part No.

Unit Price


MYD-JA5D27 Development Board

MYC-JA5D27 CPU Module
MYC-JA5D27-256N256D-I USD49

MY-LCD43TP 4.3-inch LCD Module

MY-LCD70TP 7-inch LCD Module

MY-LCD70TP-C 7-inch LCD Module

MY-SODIMM200 Socket


1. One MYD-JA5D2X Development Board includes one CPU module MYC-JA5D2X mounted on the base board. If you need more CPU module, you can order extra ones.

2. Discount is available for mass orders. Please contact MYIR for inquiries.

3. If you may need boards with other RAM, Flash configurations, please inquire MYIR for availability and prices.

4. We accept custom design based on the MYD-JA5D2X, whether reducing, adding or modifying the existing hardware according to customer’s requirement.

Packing List

NO. Item Qty Description
1 MYD-JA5D2X board 1pc One MYD-JA5D27 development board
2 Power adapter 1pc One 5V/2A Power adapter
3 Ethernet cable 1pc One Ethernet cable
4 USB Cable 1pc One USB cable
5 Serial cable 1pc One DB9 to DB9 serial cable
6 DVD 1pc user manual, base board schematic in PDF format, datasheet, software package


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