{{Infobox CPU | name = ERC32 | image = | image_size = | caption = | produced-start = | produced-end = | slowest = | fastest = | slow-unit = | fast-unit = | fsb-slowest = | fsb-fastest = | fsb-slow-unit = | fsb-fast-unit = | size-from = | size-to = | soldby = | designfirm = Sun Microsystems<small> (original design, no involvement)</small><br>Temic | manuf1 = | core1 = | sock1 = | pack1 = | arch = SPARC V7 | microarch = | numcores = | successor = LEON }}
'''ERC32''' is a radiation-tolerant 32-bit RISC processor (SPARC V7 specification) developed for space applications.<ref>{{Cite conference |last=Corbière |first=T. |last2=Gaisler |first2=J. |date=July 1997 |editor-last=Kaldeich-Schürmann |editor-first=Brigitte |title=ERC 32 Radiation Tolerant RISC Processor; Tolerance to Radiation |url=https://adsabs.harvard.edu/full/1997ESASP.395..475C |conference=Electronic Component Conference - EECC'97, Proceedings of the 3rd ESA Electronic Component Conference held 22-25 April, 1997 at ESTEC, Noordwijk, the Netherlands |location=Paris |publisher=European Space Agency |bibcode=1997ESASP.395..475C |access-date=23 March 2026|via=SAO/NASA Astrophysics Data System}}</ref><ref name=":0">{{Cite web |title=ERC32 |url=http://microelectronics.esa.int/erc32/index.html |access-date=23 March 2026 |website=European Space Research and Technology Centre|date=31 October 2011}}</ref><ref name=":1">{{Cite journal |last=Gorbunov |first=M.S. |date=11 April 2019 |title=Design of fault-tolerant microprocessors for space applications |url=https://www.sciencedirect.com/science/article/abs/pii/S0094576518321799 |journal=Acta Astronautica |publication-date=October 2019 |volume=163 |issue=Part A |doi=10.1016/j.actaastro.2019.04.029 |access-date=23 March 2026 |quote=The first chip was SPARC V7 ERC32 32-bit microprocessor designed by Gaisler Research AB (now Cobham Gaisler AB) and manufactured by Temic GmbH (now Atmel). |via=Science Direct}}</ref> It was developed by Temic,<ref name=":1" /> which was later acquired by Atmel,<ref>{{Cite news |date=9 March 1998 |title=Atmel Acquires Temic Semiconductor’s Integrated Circuit Business |url=https://www.eetimes.com/atmel-acquires-temic-semiconductors-integrated-circuit-business/ |access-date=23 March 2026 |work=EE Times}}</ref><ref name=":2">{{Cite conference |last=Renaud |first=Nicolas |date=6 September 2005 |orig-date=6-8 July 2005 |title=How to Cope with SEU/SET at Chip Level? The Example of a Microprocessor Family |url=https://ieeexplore.ieee.org/document/1498180/ |conference=11th IEEE International On-Line Testing Symposium |publisher=Institute of Electrical and Electronics Engineers |doi=10.1109/IOLTS.2005.33 |isbn=0-7695-2406-0 |issn=1530-1591 |url-access=subscription |access-date=23 March 2026 |quote=...a SPARC processor product line for space has been made available by ATMEL since now more than ten years, starting by the ERC32 three chips processor and followed by the TSC695F ERC32 single chip processor. |via=IEEE Xplore |conference-url=https://www.computer.org/csdl/proceedings/iolts/2005/12OmNzn38K6|page=313}}</ref> and then Microchip.<ref>{{Cite news |date=4 April 2016 |title=Microchip Technology completes Atmel acquisition |url=https://www.reuters.com/article/technology/microchip-technology-completes-atmel-acquisition-idUSASC08JPQ/ |access-date=23 March 2026 |work=Reuters}}</ref>
It is used in the DMS-R (Data Management System - Russian) computer of 'Zvezda' section of the Russian Orbital Segment on the International Space Station (ISS). It is also used in the control, mission and failure management systems in the Russian segment, as well as the fault-tolerant systems of the Automated Transfer Vehicle and standard payload computer of the wider ISS.<ref>{{Cite conference |last=Pouponnot |first=A.L.R. |orig-date=6-8 July 2005 |title=Strategic use of SEE mitigation techniques for the development of the ESA microprocessors: past, present, and future |url=https://ieeexplore.ieee.org/document/1498182/ |conference=11th IEEE International On-Line Testing Symposium |publication-date=6 September 2005 |page=320 |doi=10.1109/IOLTS.2005.66 |isbn=0-7695-2406-0 |issn=1942-9401 |url-access=subscription |access-date=23 March 2026 |conference-url=https://www.computer.org/csdl/proceedings/iolts/2005/12OmNzn38K6|via=IEEE Xplore}}</ref>
==Versions== Two versions have been manufactured:<ref name=":0" /><ref name=":2" />
* ERC32 Chip Set (Part Names: TSC691, TSC692, TSC693) * ERC32 Single Chip (Part Name: TSC695, TSC695F)
==Support== Support for the chip set version of the ERC32 has been discontinued.<ref name=":0" /> ERC32 was succeeded by LEON (SPARC V8 specification).<ref>{{Cite web |date=11 November 2009 |title=Overview of LEON tools |url=https://www.esa.int/TEC/Software_engineering_and_standardisation/SEM5T7XIPIF_0.html |access-date=23 March 2026 |website=European Space Agency |quote=The LEON is ERC32’s successor and is the latest iteration of ESA's effort in providing a source of radiation tolerant microprocessors to the European space industry.}}</ref><ref>{{Cite journal |last=Parra |first=Pablo |last2=da Silva |first2=Antonio |last3=Losa |first3=Borja |last4=Ignacio García |first4=J. |last5=Rodríguez Polo |first5=Óscar |last6=Martínez |first6=Agustín |last7=Sánchez |first7=Sebastián |date=24 July 2023 |title=Tailor-made Virtualization Monitor Design for CPU Virtualization on LEON Processors |url=https://dl.acm.org/doi/full/10.1145/3584702 |journal=ACM Transactions on Embedded Computing Systems |publisher=Association for Computing Machinery |volume=22 |issue=4 |article-number=60 |page=5 |doi=10.1145/358470 |eissn=1558-3465 |access-date=23 March 2026 |quote=LEON is an implementation of the SPARC V8 architecture whose development was promoted by the ESA as an evolution of the ERC32 platform.}}</ref>
==External links== * [http://klabs.org/DEI/Processor/sparc/ERC32/ERC32_docs.htm ERC32 Documentation] * [https://www.microchip.com/wwwproducts/en/TSC695F TSC695 page on Atmel/Microchip Website] * [http://tldp.org/HOWTO/html_single/SPARC-HOWTO/#ss2.5 GNU/Linux SPARC-HOWTO]
==References== <references/>
{{DEFAULTSORT:Erc32}} Category:Radiation-hardened microprocessors Category:Open microprocessors Category:SPARC microprocessors