The Micro Satellite Processor Unit (MICROSATPRO) is a high-performance onboard computer (OBC) that is compatible with micro-satellite platforms for advanced space missions. It is a control unit that has high fault tolerance and processing power specifications for difficult space conditions. As a target, MICROSATPRO is designed to be operational in a low earth orbit (LEO) for at least five years. MICROSATPRO has an operating system running on an FPGA (soft processor-based) and supports the most commonly used interfaces (RS485, RS422, CAN, SpaceWire, SPI, 12C, etc.) in microsatellite platforms. With its modular design, it easily adapts to the connection constraints of the target platform. Single Event Effects (SEE) protection is provided through the use of a Fault Tolerant (FT-LEON3) processor core, Triple Modular Redundancy (TMR) in FPGA, Error Detection and Correction (EDAC) in memory units, Watchdog on software and latch-up Current Limiter (LCL).

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Last updated: 2021-09-25

MICROSATPRO Space Qualified Processor Unit



32-bit Leon3 Fault-Tolerant Processor
processor clock
48 MHz
SPI: 128 MB (Post-EDAC)
Parallel: 8 GB (EDAC)
32 MB (Post-EDAC)
nominal power consumption
3.0 W
data interface
2x SpaceWire (10 Mbps)
1x SPI (10 Mbps)
1x I2C (400 kbps)
2x CAN (1 Mbps)
280 g
18 mm
130 mm
126 mm


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