Editing Zilog Z80 (section)

=== Embedded systems and consumer electronics ===
[[File:PABX.jpg|thumb|Z80-based [[PABX]]. The Z80 is to the right of the chip with the hand-written white label on it.]]

The Zilog Z80 has long been a popular microprocessor in [[embedded system]]s and [[microcontroller]] cores,<ref name="Heath 2003" /> where it remains in widespread use today.<ref name="Balch 2003">{{Cite book |last=Balch |first=Mark |title=Complete Digital Design: A Comprehensive Guide to Digital Electronics and Computer System Architecture |date=June 18, 2003 |publisher=[[McGraw-Hill Professional]] |isbn=0-07-140927-0 |series=Professional Engineering |location=[[New York City|New York, New York]] |page=122 |chapter=Digital Fundamentals}}</ref><ref>{{Cite book |last=Ian R. Sinclair |url=https://archive.org/details/practicalelectro0000sinc_u9l7/page/204/mode/2up |title=Practical electronics handbook |publisher=Newnes |year=2000 |isbn=978-0-7506-4585-0 |edition=5 |location=Oxford, Angleterre |page=204 |lccn=00502236 |oclc=42701044}}</ref> Applications of the Z80 include uses in [[consumer electronic]]s, industrial products, and electronic musical instruments. For example, Z80 was used in the groundbreaking music synthesizer [[Prophet-5]],<ref>{{Cite web |year=1999 |title=Gordon Reid's Vintage Synths – the Sequential Circuits Prophet 5 and Prophet 10 |url=https://www.gordonreid.co.uk/vintage/prophet.shtml |url-status=live |archive-url=https://web.archive.org/web/20231105135941/https://www.gordonreid.co.uk/vintage/prophet.shtml |archive-date=November 5, 2023 |website=gordonreid.co.uk}}</ref> as well as in the first [[MIDI]]-equipped synthesizer, the [[Prophet 600]].<ref>{{Cite web |last=Fabio |first=Adam |date=March 19, 2014 |title=Prophet 600: A Classic Synthesizer Gets Processor Upgrade |url=https://hackaday.com/2014/03/18/prophet-600-a-classic-synthesizer-gets-processor-upgrade/ |url-status=live |archive-url=https://web.archive.org/web/20231105135947/https://hackaday.com/2014/03/18/prophet-600-a-classic-synthesizer-gets-processor-upgrade/ |archive-date=November 5, 2023}}</ref> The Z80 was the basis for all [[E-mu Systems]] instruments from 1976 to 1986.<ref name="SOSSep2002">{{cite web|last=Keeble|first=Rob|title=30 Years of Emu|url=https://www.soundonsound.com/music-business/30-years-emu|website=Sound On Sound|publisher=SOS Publications Group|date=September 2002|access-date=10 January 2025}}</ref> [[Casio]] used the Z80A in its [[PV-1000]] video game console.

Many early-1980s arcade video games, including the arcade game [[Pac-Man]], contain Z80 CPUs.

The Z80 was used in Sega's [[Master System]] and [[Game Gear]] consoles. The [[Sega Genesis]] contains a Z80, with its own 8&nbsp;KB of RAM, which runs in parallel with the MC68000 main CPU, has direct access to the system's sound chips and I/O (controller) ports, and has a switched data path to the main memory bus of the 68000 (providing access to the 64&nbsp;KB main RAM, the software cartridge, and the whole video chip); in addition to providing backward compatibility with Master System games, the Z80 is often used to control and play back audio in Genesis software.{{efn|This common, but merely optional and not limiting, usage leads to the frequent but incorrect description of the Z80 in the Genesis as a "sound processor".}}

Z80 CPUs were also used in the popular [[Comparison of Texas Instruments graphing calculators|TI-8x series of graphing calculators]] from [[Texas Instruments]], beginning in 1990 with the [[TI-81]], which features a Z80 clocked at 2&nbsp;MHz. Most higher-line calculators in the series, starting with the [[TI-82]] and [[TI-85]], clock their Z80 CPUs at 6&nbsp;MHz or higher. (A few models with TI-8x names use other CPUs, such as the M68000, but the vast majority are Z80-based. On those, it is possible to run assembled or compiled user programs in the form of Z80 machine-language code.) The [[TI-84 Plus series]], introduced in 2004, is still in production as of 2023. The [[TI-84 Plus series#TI-84 Plus CE and TI-84 Plus CE-T|TI-84 Plus CE series]], introduced in 2015, uses the Z80-derived [[Zilog eZ80]] processor and is also still in production as of 2024.

In the late 1980s, a series of [[Soviet]] landline phones called "AON" featured the Z80; these phones expanded the feature set of the landline with [[caller ID]], different [[ringtone]]s based on the caller, [[speed dial]] and so forth.<ref>{{Cite web |date=January 29, 2020 |title=Making a demo for an old phone — AONDEMO |url=https://habr.com/en/post/486010/ |url-status=live |archive-url=https://web.archive.org/web/20231105140002/https://habr.com/ru/articles/486010/ |archive-date=November 5, 2023 |website=habr.com}}</ref> In the second half of the 1990s however, manufacturers of these phones switched to 8051 compatible MCUs to reduce power consumption, and prevent compact wall power adapters from overheating.