The RAD750
General information
Designed byIBM
Common manufacturer(s)
Max. CPU clock rate110 MHz  to 200 MHz 
L1 cache32 KB instruction + 32 KB data
Architecture and classification
Technology node250 nm to 150 nm
MicroarchitecturePowerPC 750
Instruction setPowerPC v.1.1
Physical specifications
  • 1

The RAD750 is a radiation-hardened single-board computer manufactured by BAE Systems Electronics, Intelligence & Support.[1] The successor of the RAD6000, the RAD750 is for use in high-radiation environments experienced on board satellites and spacecraft.[2] The RAD750 was released in 2001, with the first units launched into space in 2005.[1][3]


The CPU has 10.4 million transistors, an order of magnitude more than the RAD6000 (which had 1.1 million).[3] It is manufactured using either 250 or 150 nm photolithography and has a die area of 130 mm2.[1] It has a core clock of 110 to 200 MHz and can process at 266 MIPS or more.[1] The CPU can include an extended L2 cache to improve performance.[3] The CPU can withstand an absorbed radiation dose of 2,000 to 10,000 grays (200,000 to 1,000,000 rads), temperatures between −55 °C and 125 °C, and requires 5 watts of power.[1][3] The standard RAD750 single-board system (CPU and motherboard) can withstand 1,000 grays (100,000 rads), temperatures between −55 °C and 70 °C, and requires 10 watts of power.[3]

The RAD750 system has a price that is comparable to the RAD6000, the latter of which as of 2002 was listed at US$200,000 (equivalent to $325,402 in 2022).[4] Customer program requirements and quantities, however, greatly affect the final unit costs.[citation needed]

The RAD750 is based on the PowerPC 750.[1] Its packaging and logic functions are completely compatible with the PowerPC 7xx family.[3]

The term RAD750 is a registered trademark of BAE Systems Information and Electronic Systems Integration Inc.[5]


In 2010, it was reported that there were over 150 RAD750s used in a variety of spacecraft.[6] Notable examples,[2] in order of launch date, include:


  1. ^ a b c d e f "RAD750 radiation-hardened PowerPC microprocessor" (PDF). BAE Systems. 2008-07-01. Retrieved 2009-04-27.
  2. ^ a b c d e f "RAD750". Ball Aerospace & Technologies. Archived from the original on 2007-07-11. Retrieved 2009-03-08.
  3. ^ a b c d e f L. Burchin (2002-12-04), "Rad750 experience: The challenge of SEE hardening a high performance commercial processor MRQW 2002" (PDF), Microelectronics Reliability and Qualification Workshop, Manhattan Beach, CA: BAE Systems, archived from the original (PDF) on 2009-03-26, retrieved 2009-04-30.
  4. ^ "BAE Systems moves into third generation rad-hard processors". Military & Aerospace Electronics. 2002-05-01. Retrieved 2009-04-30.
  5. ^ "RAD750". Logos Database. Retrieved 2013-02-18. USPTO serial number 75894617
  6. ^ a b "BAE RAD750 Radiation-Hardened SBCs Control WorldView-1 Satellite". EDA Geek. 2007-10-17. Archived from the original on 2008-12-04. Retrieved 2009-04-28.
  7. ^ The STEREO Mission. Springer. 2008-07-18. ISBN 9780387096483. Retrieved 20 January 2014.
  8. ^ BAE Systems Space Computer Gives Wisdom To The WISE, spacedaily.com, 2009-12-22.
  9. ^ "Juno Launch Press Kit" (PDF). NASA. August 2011. Retrieved 18 February 2013.
  10. ^ NASA Launches Most Capable and Robust Rover to Mars Archived 2021-03-03 at the Wayback Machine.
  11. ^ Van Allen Probes Launch.
  12. ^ Preview of the InSight Mars launch.
  13. ^ "The Mars 2020 Rover's Brains". NASA. Retrieved August 29, 2019.
  14. ^ McComas, David. "Lessons from 30 Years of Flight Software" (PDF). NTRS - NASA Technical Reports Server.