Editing Zilog Z80 (section)

=== Second sources ===
Mostek, which produced the first Z80 for Zilog, offered it [[second-source]] as MK3880. SGS-Thomson (now [[STMicroelectronics]]) was a second source, too, with their Z8400. Sharp and [[NEC]] developed second sources for the NMOS Z80, the LH0080 and μPD780C, respectively. The LH0080 was used in various home computers and personal computers made by Sharp and other Japanese manufacturers, including [[Sony]] [[MSX]] computers, and a number of computers in the [[Sharp MZ]] series.<ref>{{Cite web |title=Overview of the SHARP MZ-series |url=http://www.sharpmz.org/mzovview.htm |url-status=dead |archive-url=https://web.archive.org/web/20080327200542/http://www.sharpmz.org/mzovview.htm |archive-date=March 27, 2008 |access-date=July 28, 2011 |website=SharpMZ.org |quote=Most MZ's use the 8bit CPU LH0080 / Z80 [...]}}</ref> Sharp developed the LH0080A and LH0080B to operate at frequencies of 4&nbsp;MHz and 6&nbsp;MHz, respectively.<ref>{{Cite book |url=http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=217 |title=1986 Semiconductor Data Book |publisher=[[Sharp Corporation]] |year=1986 |page=210 |chapter=LH0080/LH0080A/LH0080B |archive-url=https://web.archive.org/web/20240101124118/http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=217 |archive-date=January 1, 2024 |url-status=live |accessdate=January 1, 2024}}</ref> Sharp also developed LH0083<ref>{{Cite web |title=Sharp 1986 Semiconductor Data Book |url=http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=262 |access-date=January 13, 2024 |pages=255–269 |archive-date=January 20, 2024 |archive-url=https://web.archive.org/web/20240120013519/http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=262 |url-status=live }}</ref> compatible with Z80 DMA.

Toshiba made a CMOS-version, the TMPZ84C00, which is believed{{by whom | date = December 2010}} (but not verified) to be the same design also used by Zilog for its own CMOS Z84C00. There were also Z8400, Z80-chips made by [[GoldStar]] (now [[LG]]) and the BU18400 series of Z80-clones (including DMA, PIO, CTC, DART and SIO) in [[NMOS logic|NMOS]] and [[CMOS]] made by [[ROHM Electronics]]. The LH5080,<ref>{{Cite web |title=Sharp 1986 Semiconductor Data Book |url=http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=303 |access-date=January 20, 2024 |pages=296–301 |archive-date=January 20, 2024 |archive-url=https://web.archive.org/web/20240120013519/http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=303 |url-status=live }}</ref> LH5081,<ref>{{Cite web |title=Sharp 1986 Semiconductor Data Book |url=http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=309 |access-date=January 28, 2024 |pages=302–306 |archive-date=January 28, 2024 |archive-url=https://web.archive.org/web/20240128011432/http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=309 |url-status=live }}</ref> and LH5082,<ref>{{Cite web |title=Sharp 1986 Semiconductor Data Book |url=http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=314 |access-date=January 28, 2024 |pages=307–311 |archive-date=January 28, 2024 |archive-url=https://web.archive.org/web/20240128011432/http://www.bitsavers.org/components/sharp/_dataBooks/1986_Sharp_MOS_Semiconductor_Data_Book.pdf#page=314 |url-status=live }}</ref> which are CMOS versions of the Z80, PIO, and CTC respectively, are manufactured by Sharp.

In [[East Germany]], an unlicensed clone of the Z80, known as the [[U880]], was manufactured. It was used extensively in [[VEB Robotron|Robotron]]'s and VEB Mikroelektronik Mühlhausen's computer systems (such as the [[KC85]]-series) and also in multiple self-made computer systems. In [[Romania]] another unlicensed clone could be found, named [[MMN80CPU]] and produced by [[Electronics industry in the Socialist Republic of Romania|Microelectronica]], used in home computers like TIM-S, HC, COBRA.

Also, several clones of Z80 were created in the [[Soviet Union]], notable ones being the [[T34 (microprocessor)|T34BM1]], also called [[КР1858ВМ1]] (parallelling the Soviet 8080-clone [[KR580VM80A]]). The first marking was used in pre-production series, while the second had to be used for a larger production. Though, due to the collapse of Soviet microelectronics in the late 1980s, there are more T34BM1s than КР1858ВМ1s.{{citation needed|date=May 2013}}

<gallery mode="packed">
File:KL Mostek MK3880P Z80.jpg|[[Mostek]] Z80: MK3880
File:KL NEC uPD780C.jpg|[[NEC μPD780C]]
File:Sharp LH0080A.jpg|[[Sharp LH0080]]
File:TMPZ84C00.jpg|Toshiba Z84C00
File:KL KME U880D-1.jpg|East Germany RFT [[U880]]D
File:KL USSR T34BM1 Z80 Black Background.jpg|Soviet T34BM1 Z80 clone
</gallery>