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Diamond Point International

MEN Mikro A23C - 6U VMEbus Board with TI Sitara ARM Cortex-A15 CPU

Up to 2 GB DDR3 RAM, 2 PMC/XMC Slots, 2 Gigabit Ethernet


The single-board computer A23C features a versatile high-performance, small footprint and low-power ARM processor, which allows application partitioning thanks to its 32-bit A15 CPU with integrated M4, GPU and DSP coprocessors. The A23C supports a reduction of system size, a reliable long-term operation without forced air cooling, and manifold computing functions with just one computer board.

Versatile Front I/O and Mass Storage

With one USB port, two Gigabit Ethernet ports and one RS232 COM at the front, the board offers the crucial basics of a multi-purpose industrial computer. As these interfaces are already provided by the ARM CPU, the remaining board space can be flexibly used for two PMC/ XMC modules. Being equipped with DDR3 SDRAM, Flash and FRAM, the need for flexible mass storage extensions is covered by slots for microSD card and mSATA.

Additional Interfaces via PMC/XMC

In addition, the A23C can be equipped with up to two XMC or PMC mezzanine cards on shared sites, providing both front I/O (XMC/PMC) and rear I/O (PMC) for functions such as graphics, mass storage, or further Ethernet. The two PMC slots support modules up to 64-bit/133-MHz PCI-X, while the XMC slots are controlled by one PCI Express x1 link. The modular extension with I/O mezzanines on a single board computer allows configured tailored systems from open standard components, reducing thus integration time and cost.

Designed for Harsh Environments

The A23C supports operation in a -40°C to +85°C temperature range. The board withstands shock and vibration as all components on the board are soldered, which is a prerequisite for reliable operation and a longer product lifetime.

Software Support

The CPU board is supported by the Universal Boot Loader (U-Boot), which can be used for bootstrapping operating systems, for hardware testing, or for debugging applications without running any operating system. TI Sitara processors guarantee long-term availability and compatibility with the latest versions of Linux or QNX.

Demanding Markets

The A23C is a computer board well suited for critical embedded applications, especially in the industrial automation and power & energy markets, for example as the central safety platform for power plants. With a guaranteed standard lifetime of ten years from product start, the A23C facilitates life-cycle management by making the overall system available at least for this period of time.



CPU SpecTI Sitara ARM Cortex-A15, AM5728, 1.5 GHz, dual core, no ECC, with graphics
TI Sitara ARM Cortex-A15, AM5726, 1.5 GHz, dual core, no ECC, no graphics (on request)
MemorySystem Memory
• Soldered DDR3, no ECC
• 1 GB or 2 GB
Boot Flash
• 4 MB, or
• 8 MB, or
• 16 MB
128 KB non-volatile FRAM
NetworkTwo RJ45 connectors, 1000BASE-T
Four link and activity LEDs (two per channel)
StorageThe following mass storage devices can be assembled:
• microSD card
• mSATA disk
• eMMC device, soldered; different sizes available
USBOne Type A connector, host, USB 2.0
SerialOne physical interface RS232 on RJ45 connector
Front I/OUSB: One Type A connector, host, USB 2.0
Ethernet: Two RJ45 connectors, 1000BASE-T, four link and activity LEDs (two per channel)
UART: One physical interface RS232 on RJ45 connector
PMC/XMC front I/O if populated
• Signals from PMC modules 0 and 1
• PMC I/O module (PIM) support through J4 for both slots
OtherStatus LEDs
Reset button
Temperature measurement
Voltage monitoring
Real-time clock
• with supercapacitor, or
• with battery backup (optional)
BIOSU-Boot Universal Boot Loader


ExpansionTwo slots usable for PMC or XMC
• Two slots
• Compliant with XMC standard VITA 42.3-2006
• One x1 PCI Express link for both slots
• 5 V / 3.3 V V(I/O)
• Two slots
• Compliant with PMC standard IEEE 1386.1
• PCI/PCI-X 32/64-bit, 33/66/133 MHz, 3.3 V V(I/O)

Backplane information:
• Compliant with VME64 Specification
• Slot-1 function with auto-detection
• Hot insertion and removal without damage
• Master: D08(EO):D16:D32:D64:A16:A24:A32:ADO:BLT:RMW
• Slave: D08(EO):D16:D32:D64:A16:A24:A32:BLT:RMW
• 1 MB shared fast SRAM
• Mailbox functionality
• Interrupter D08(O):I(7-1):ROAK
• Interrupt handler D08(O):IH(7-1)
• Single level 3 fair requester
• Single level 3 arbiter
• Bus timer
• Location Monitor
ElectricalSupply voltage/power consumption:
• +5 V (-3%/+5%)
• +3.3 V (-3%/+5%)
• ±12 V (-5%/+5%), only provided for mezzanines that need 12 V

Power consumption: 9 W max. (without XMC/PMC modules)
Mechanical6U, 4 HP
Conformal CoatingConformal coating on request
SoftwareLinux Yocto
QNX 6.6
VxWorks (on request)
TemperatureTemperature range (operation):
• -40 to +85°C (qualified components), compliant with EN 50155, class TX)
• Airflow: min. 1.0 m/s
Temperature range (storage): -40 to +85°C
Cooling concept: Air-cooled
HumidityRelative humidity (operation): max. 95% non-condensing
Relative humidity (storage): max. 95% non-condensing
Weight370 g (01A023C00)
Altitude-300 m to +3000 m
MTBFtbd h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety/CertificationPCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMCEN 50153:2014
EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + AC:2011 + A2:2013
EN 62368-1:2014
Warranty2 Years

Ordering Details

6U VMEbus board with dual-core TI Sitara AM5728, 1.5GHz, 1GB DDR3, 2x 1Gb Ethernet, 1x RS232 on RJ45, 1x USB 2.0, 2x PMC/XMC slots, 1x microSD card slot, 1x mSATA slot, -40°C to 85°C

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