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Diamond Point International

Aitech S950/S950-02 - 3U CompactPCI Radiation Tolerant PowerPC® SBC

Up to 128 MB SD RAM (Triple Voting), PMC Slot, 1 10/100 Ethernet and more


Aitech's S950 3U cPCI Radiation Tolerant PowerPC® Single Board Computer (SBC) is a powerful rugged cPCI board, specifically designed to operate in the harsh space radiation environment for mission-critical applications such as redundant mission computer, flight guidance and navigation computer, command and data handling computer, solid state recorder, video controller and manipulator controller.

The S950 board is powered by IBM’s 750FX high performance, low power, and Silicon on Insulator (SOI) PowerPC® microprocessor running at 733MHz (upgraded version S950-02 available with 1GHz option). The SOI technology reduces power consumption, and significantly increases processor speed and radiation tolerance. The optional 750GX processor provides additional performance. On-board memory resources are protected from radiation effects utilizing a number of strategies: SDRAM is triple redundant, with a voting mechanism incorporated in a radiation tolerant FPGA. Boot flash integrity is guaranteed by dual redundancy (i.e. two independent banks of boot Flash) in combination with a watchdog mechanism.

Complimentary memory resources consist of 64 MB ECC-protected user flash. The user flash has an optional Flash FileSystem Driver (FFD) software package to implement a file-system for up to 60 MB. Designed to endure in space environment, the S950 design utilizes radiation tolerant devices for implementing all on board resources such as System Controller (PCI bridge and Memory Controller), cPCI Bridge and other critical system functions including reset mechanism, interrupt controller, two serial ports, four timers/counters and watchdog timer.

To expedite the transition from development to deployment, Aitech provides 100% software compatible development boards and a 10/100BaseT Ethernet interface is provided for software development only. Designed to withstand the rigors of space environments, the S950 ’s highly integrated design guarantees the highest performance and versatility available on any rugged conduction cooled cPCI PowerPC® SBC.



CPU SpecHigh Performance PowerPC® 750FX Processor running at 733 MHz
Optional implementation of PowerPC® 750GX Processor running at 1 GHz
Internal L1 Cache (32 kB) with Parity Check for both Tags and Data
Internal L2 Cache (512 kB fo 750FX or 1 MB for optional 750GX) with Parity Check on Tags and ECC Check on Data
Memory128 MB of SDRAM Arranged in a Triple Redundant Architecture (3 Bits per Cell)
NetworkOff-Board Ethernet Interface (10/100 Mbps) for Ground Development
Storage1 MB Dual-Redundant Boot
64 MB ECC-Protected User Flash Memory
SerialTwo Serial Ports and One 1PPS Input Supporting RS422 Interface
OtherDesigned for LEO, Mars Terrestrial with an Option for GEO Environments
Level-2 Components per NASA GSFC-INST-001 specification are available


ExpansionCompactPCI System Slot SBC
One Standard PMC Slot
Electrical3.3 V DC, typical consumption 2.5A (8.25W), maximum consumption 3A (10W)
MechanicalConduction cooled 3U format per VITA 30.1-2002 with exceptions
Conformal CoatingConformal optional (series 100), standard (series 200/500). Acrylic or Silicone
SoftwareThe S950 is delivered with a complete Board Support Package (BSP) for WindRiver’s VxWorks RTOS version 5.5.1. Other Real-Time operating systems (RTOS) support may be available upon request. The BSP includes drivers for on board resources allowing the user to take full advantage of the board’s features.
TemperatureSeries-100 Lab Grade EDU
• Temperature range (operation): 0 to +55°C
• Temperature range (storage): -40 to +85°C

Series-200 Qual Unit
• Temperature range (operation): -40 to +71°C
• Temperature range (storage): -50 to +100°C

Series-500 Radiation Tolerant Flight Unit
• Temperature range (operation): -40 to +65°C (space vacuum)
• Temperature range (storage): -62 to +125°C

Ruggedization level is determined in the part numbering scheme - refer to datasheet for further details
HumiditySeries-100 Lab Grade EDU: 0-90%
Series-200 Qual Unit: 0-100% (coating as standard)
Series-500 Radiation Tolerant Flight Unit: 0-100% (coating as standard)
AltitudeSeries-100 Lab Grade EDU: 15,000ft
Series-200 Qual Unit: 70,000ft
Series-500 Radiation Tolerant Flight Unit: 10 to the -4 Torr
VibrationSeries-100 Lab Grade EDU:
• Random (g2/Hz): 20-2000Hz/0.02 g2/Hz
• Sine (g PEAK): 10-100Hz/2g

Series-200 Qual Unit:
• Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Sine (g PEAK): 50-500Hz/10g

Series-500 Radiation Tolerant Flight Unit:
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
ShockSeries-100 Lab Grade EDU: 20g/6mS
Series-200 Qual Unit: 40g/11ms, 100g/6ms
Series-500 Radiation Tolerant Flight Unit: 40g/11ms, 100g/6ms (pyro-shock 875g)
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme

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