SmallSat SIRIUS-OBC-LEON3FT
AAC Clyde Space
Flight-proven SmallSat OBC with 32-bit LEON3FT at 50 MHz, SpaceWire, EDAC-protected memory. TRL 9, flown since 2021, 5-year LEO design life. ITAR free.
Technical specifications
- Expected Lifespan
- 5 years in LEO
- Processor
- 32-bit LEON3FT SPARC v8 @ 50 MHz
- SDRAM
- 64 MB post-EDAC
- NVRAM
- 16 kB post-EDAC
- Nand Flash
- 2 GB post-EDAC
- Operating Temperature
- -30 to +60 C
- Power Supply Input
- 4.5V to 16V
- Radiation (TiD)
- 20 kRAD (qualified >30 kRAD, Si)
- SpaceWire
- 50 Mbps, 2 interfaces
- Serial Ports RS422/RS485
- 6 UARTs
- GPIO
- 16 (3.3V logic)
- Nominal Power
- 1.3 W
- Mass
- 130 g
- Dimensions
- 95.89 x 90.17 x 17.20 mm
About
The SmallSat SIRIUS-OBC-LEON3FT is a dependable CDH solution for satellite constellations in LEO and deep space. Features a 32-bit LEON3FT (SPARC v8) fault-tolerant processor at 50 MHz with RTEMS RTOS. Enhanced EDAC tolerant to SEE through TMR on FPGA and EDAC on memories. SpaceWire main data bus. Flight proven since 2021. ITAR free. Modular design with optional CAN and additional SpaceWire daughter board. Radiation tolerance 20 kRAD (qualified >30 kRAD, Si).
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
