On-Board Computer (OBC)
Terma
Radiation-tolerant on-board computer for ESA and commercial satellites — LEON2/3/4 processor, MIL-STD-1553 and SpaceWire interfaces, proven heritage on multiple ESA science and EO missions.
Technical specifications
- Processor
- LEON2/3/4 (SPARC V8/V9 ISA)
- Data Buses
- SpaceWire, MIL-STD-1553, UART, SPI, I²C
- Memory
- Rad-tolerant SRAM + EEPROM/FLASH NVM
- Qualification
- ESA ECSS, full documentation
- Radiation
- TID and SEU mitigation
- Applications
- Platform/AOCS processor, payload data handler
About
Terma’s On-Board Computer (OBC) is a radiation-tolerant flight computer designed for the demanding requirements of satellites operating in LEO, MEO, and GEO environments. Built around LEON processor cores with radiation mitigation through both hardware design and software error correction, the OBC provides the central data processing and housekeeping function for the satellite platform or payload.
The Terma OBC family features SpaceWire and MIL-STD-1553 data bus interfaces for interfacing to payload instruments, attitude control sensors and actuators, power control electronics, and downlink subsystems. Memory configurations support radiation-hardened SRAM working memory and EEPROM/FLASH non-volatile storage for software and parameter tables. The unit is designed to ESA ECSS standards with full design qualification documentation and flight heritage on multiple ESA missions.
Flight heritage includes ESA science missions, Earth observation satellites, and technology demonstrators. Terma also develops embedded software for its OBC platform and provides software integration support, allowing customers to adapt mission applications to the OBC hardware environment. The product is used by European satellite manufacturers as a qualified, off-the-shelf platform processing unit reducing development cost and schedule risk.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.