Editing SPICE (section)

== Successors ==
=== Open-source successors ===
No newer versions of Berkeley SPICE have been released after version 3f5 in 1993.<ref>{{cite web |title=The Spice Page |url=http://bwrcs.eecs.berkeley.edu/Classes/IcBook/SPICE/ |website=University of California at Berkeley. |archive-url=https://web.archive.org/web/20231208045915/http://bwrcs.eecs.berkeley.edu/Classes/IcBook/SPICE/ |archive-date=December 8, 2023 |url-status=dead}}</ref> Since then, the open-source or academic continuations of SPICE include: 

* XSPICE,<ref>{{Cite book|doi=10.1109/ISCAS.1992.230083|chapter=Code-level modeling in XSPICE|title=&#91;Proceedings&#93; 1992 IEEE International Symposium on Circuits and Systems|year=1992|last1=Cox|first1=F.L.|last2=Kuhn|first2=W.B.|last3=Murray|first3=J.P.|last4=Tynor|first4=S.D.|volume=2|pages=871–874|isbn=0-7803-0593-0|s2cid=195705106}}</ref> developed at [[Georgia Institute of Technology|Georgia Tech]], which added mixed analog/digital "code models" for behavioral simulation; 
* CIDER<ref>CODECS: A Mixed-Level Circuit and Device Simulator, K. Mayaram, Memorandum No. UCB/ERL M88/71, Berkeley, 1988, http://www.eecs.berkeley.edu/Pubs/TechRpts/1988/ERL-88-71.pdf</ref> (previously CODECS), developed by UC Berkeley and Oregon State University, which added [[semiconductor device modeling|semiconductor device simulation]];
* [[Ngspice]],<ref>[https://fosdem.org/2019/schedule/event/ngspice/ "ngspice, current status and future developments"], H. Vogt, FOSDEM, Brussels 2019</ref><ref>{{cite web|url=https://peertube.f-si.org/videos/watch/62e7ad36-e7fc-4884-971a-9fcedf17d9f2 |title=ngspice - an open source mixed signal circuit simulator |publisher=Free Silicon Foundation (F-Si) | access-date=2019-07-08}}</ref> based on SPICE 3f5;
* WRspice,<ref>{{cite web|url=https://github.com/wrcad/xictools |title=WRspice |publisher=Whiteley Research | access-date=2021-05-07}}</ref> a C++ re-write of the original spice3f5 code.
* [[SPICE OPUS]]

Not a descendant but compatible:
* [[Quite Universal Circuit Simulator|QUCS]], which uses an independently-developed Qucsator backend but understands SPICE input. The QUCS-S variant supports using a SPICE-derived backend.<ref>[https://ra3xdh.github.io/ QUCS-S software]</ref>
* Xyce, independent but compatible work from Sandia National Laboratories. Parallel (MPI) C++ for high performance and large netlists.<ref>[https://xyce.sandia.gov/ Xyce software, Sandia National Laboratories.]</ref>

=== Commercial versions and spinoffs ===
Berkeley SPICE inspired and served as a basis for many other circuit simulation programs, in academia, in industry, and in commercial products. The first commercial version of SPICE is ISPICE,<ref>{{Cite book|doi=10.1109/BIPOL.1990.171136|chapter=SPICE: The third decade|title=Proceedings on Bipolar Circuits and Technology Meeting|year=1990|last1=Vladimirescu|first1=A.|pages=96–101|s2cid=62622975}}</ref> an interactive version on a timeshare service, [[National CSS]]. The most prominent commercial versions of SPICE include HSPICE (originally commercialized by [[Ashawna Hailey|Ashawna and Kim Hailey]] of Meta Software, but now owned by [[Synopsys]]) and [[PSPICE]] (now owned by [[Cadence Design Systems]]). The integrated circuit industry adopted SPICE quickly, and until commercial versions became well developed many IC design houses had proprietary versions of SPICE.<ref>K. S. Kundert, ''The Designer's Guide to SPICE and Spectre'', Kluwer. Academic Publishers, Boston, 1995</ref>

Today a few IC manufacturers, typically the larger companies, have groups continuing to develop SPICE-based circuit simulation programs. Among these are

* ADICE and [[LTspice]] at [[Analog Devices]],
* [[QSPICE]] at [[Qorvo]],
* MCSPICE, followed by Mica at [[Freescale Semiconductor]], now [[NXP Semiconductors]], and
* [[TINA (software)|TINA-TI]]<ref>[http://www.ti.com/tool/tina-ti SPICE-Based Analog Simulation Program - TINA-TI - TI Software Folder] {{webarchive |url=https://web.archive.org/web/20161019062912/http://www.ti.com/tool/tina-ti |date=October 19, 2016 }}</ref> at [[Texas Instruments]].

Both LTspice and TINA-TI come bundled with models from their respective company.<ref name="Kay2012">{{cite book|author=Art Kay|title=Operational Amplifier Noise: Techniques and Tips for Analyzing and Reducing Noise|url=https://books.google.com/books?id=0_PkTgqJD3kC&pg=PA41|year=2012|publisher=Elsevier|isbn=978-0-08-094243-8|page=41}}</ref><ref name="Mancini2012">{{cite book|author=Ron Mancini|title=Op Amps for Everyone|url=https://books.google.com/books?id=0J6GtAlcHUcC&pg=PA162|year=2012|publisher=Newnes|isbn=978-0-12-394406-1|page=162}}</ref>

Other companies maintain internal circuit simulators which are not directly based upon SPICE, among them PowerSpice at [[IBM]], TITAN at [[Infineon Technologies]], Lynx at [[Intel Corporation]], and Pstar at [[NXP Semiconductors]] also.<ref>{{Cite AV media|url=https://nescacademy.nasa.gov/video/7aa4def451454697a6ecdbbe088a6f3b1d|title=PSPICE Circuit Simulation Overview: Part 1|date=August 2012|last=Iannello|first=Chris|type=Video|language=English|time=2:39}}</ref>