On-board computer
SPUTNIX
A radiation-tolerant, dual-redundant onboard computer (SX-SBOX-OBC-01) built on a SPARC v8 Leon4FT processor with CAN, SpaceWire and optional MIL-STD-1553-like interfaces.
Typed specifications33 values
Discloses 9 of 13 fields engineers filter by in this category (category median 5).
- Processor
- 32-bit microprocessor based on the SPARC v8 architecture of the Leon4FT core datasheet p.5
- Mass
- 860 g datasheet p.4
- CPU clock
- 80 MHz datasheet p.5 80 MHz main computing device
- Envelope (L×W×H)
- 171 x 111 x 51 mm (without fasteners) datasheet p.4
- RAM
- 16 MB datasheet p.6 16 MB RAM for standard memory during operation
- Mass storage
- 0.001 GB EEPROM · datasheet p.6 0.016 GB MRAM
- Operating system
- RTEMS OS datasheet p.7 RTEMS SX-SBOX-KINOSOFT on-board software architecture under RTEMS OS
- Supply voltage
- 22 V min · datasheet p.4 34 V max | 22–34 V 22-34 V, galvanic isolation 500 V
- Power consumption
- 10 W Up to · datasheet p.4 10 W max | 10 W max · Up to 10 W
- Data interface
- CAN datasheet p.5 SpaceWire 4 cores of the SpaceWire interface controller with built-in p… | CAN CAN interface controllers | SpaceWire
- Processor architecture
- LEON / SPARC SPARC v8, Leon4FT core · datasheet p.4
- Flight software support
- ECSS-E-ST-70-41C telemetry and telecommand packet utilization standard; SxPA (Sputnix PnP Architecture) module datasheet p.6
- Radiation and fault mitigation
- redundant processor (hot) 2 cores (hot standby) · datasheet p.4 rad-hard components radiation-resistant 32-bit microprocessor
- Flight heritage
- Tablettsat KP and cubsat projects, Tablettsat-Aurora, Zorkiy datasheet p.7
- Cores
- 2 2 cores (hot standby) · datasheet p.4
- RAM type
- MRAM MRAM as non-volatile memory · datasheet p.5
- Program / boot memory
- 0.125 MB EEPROM for the bootloader image · datasheet p.5 16 MB MRAM non-volatile memory, useful capacity, main program image…
- Redundancy
- hot redundant assembly of 2 identical semi-sets; 2 cores in hot standby · datasheet p.4
- Data interface speed
- 1 Mbps max · CAN, up to 1 Mbit/s · datasheet p.4 100 Mbps max · SpaceWire, up to 100 Mbit/s
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier11 lines, in the manufacturer's own wording
- Dimensions
- 171 x 111 x 51 (without fasteners) mm
- Mass
- 0.86 kg
- Power voltage
- 22-34, galvanic isolation 500 V
- Power consumption, wt
- up to 10
- Duplicated interfaces
- CAN2B, SpaceWire, MKO/MIL-STD-1553-like bus (optional)
- Power consumption
- Up to 10 W
- Supply voltage
- 22-34 V
- Frequency
- 80 MHz
- Built-in memory
- 1 Mbit
- Non-volatile memory
- 16 MB
- RAM
- 16 MB
About
OC (the onboard computer) is an assembly of 2 identical semi-sets in a single body. The OC board includes: a power system with a primary DC/DC isolated converter and secondary PDM converters; a radiation-resistant 32-bit microprocessor based on the SPARC v8 architecture Leon4FT core operating at 80 MHz as the main computing device, with 2 cores in hot standby, CAN interface controllers up to 1 Mbit/s, and 4 SpaceWire interface controller cores with built-in physical layer drivers up to 100 Mbit/s for information exchange with system devices; a 1 Mbit EEPROM storing the bootloader image, which performs initial peripheral initialization, self-testing, loads and transfers control to the main executable program, and provides software update algorithms without main-program involvement; 16 MB MRAM non-volatile memory for storing the main program image and other data; and 16 MB RAM for standard operational memory. It is SPUTNIX’s own development, ECSS-compatible, low cost, light weight, low power, uses Russian electronic components, and unified interfaces.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.