Editing PowerPC 7xx (section)

==== RAD750 ====
{{Main|RAD750}}
The RAD750 is a [[radiation hardening|radiation-hardened]] processor, based on the PowerPC 750. It is intended for use in high [[ionizing radiation|radiation]] environments such as experienced on board [[satellite]]s and other [[spacecraft]]. The RAD750 was released for purchase in 2001. The [[Mars Science Laboratory]] ([[Curiosity (rover)|''Curiosity'']]), [[Mars Reconnaissance Orbiter]], [[Mars 2020]] ([[Perseverance (rover)|''Perseverance'']]) and [[James Webb Space Telescope]] spacecraft have a RAD750 on board.<ref>{{cite web|title=Mars Science Laboratory Launch Press Kit|url=http://www.jpl.nasa.gov/news/press_kits/MSLLaunch.pdf|publisher=NASA/JPL}}</ref><ref>{{Cite web|last=McComas|first=David|title=Lessons from 30 Years of Flight Software|url=https://ntrs.nasa.gov/api/citations/20150019915/downloads/20150019915.pdf|website=NTRS - NASA Technical Reports Server}}</ref>

The processor has 10.4 million transistors, is manufactured by [[BAE Systems]] using either 250 or 150&nbsp;nm process and has a die area of 130&nbsp;mm<sup>2</sup>. It operates at 110 to 200&nbsp;MHz. The CPU itself can withstand 200,000 to 1,000,000 [[Rad (unit)|Rad]]s and temperature ranges between −55 and 125&nbsp;°C.
The RAD750 packaging and logic functions has a price tag in excess of [[United States dollar|US$]]200,000 {{citation needed|date=December 2022}}: the high price is mainly due to radiation hardening revisions to the PowerPC 750 architecture and manufacturing, stringent quality control requirements, and extended testing of each processor chip manufactured.