![]() ![]() He also developed the basic design methodology used for memories and microprocessors at Intel and led the work on the Intel 4004, the Intel 8080 and several other ICs. At Fairchild Semiconductor, and later at Intel, Faggin had been working on fundamental transistor and semiconductor manufacturing technology. ![]() Physicist and engineer Federico Faggin worked at Intel on microprocessor design. (This actual chip manufactured in 1990.) A CMOS Z80 in a quad flat package Early history History A May 1976 advertisement for the Zilog Z-80 8-bit microprocessor Photo of the original Zilog Z80 microprocessor design in depletion-load nMOS. In recent decades Zilog has refocused on the ever-growing market for embedded systems, and the most recent Z80-compatible microcontroller family, the fully pipelined 24-bit eZ80 with a linear 16 MB address range, has been successfully introduced alongside the simpler Z80 and Z180 products. This won the Z80 acceptance in the world market since large companies like NEC, Toshiba, Sharp, and Hitachi started to manufacture the device (or their own Z80-compatible clones or designs). The design was also copied by several Japanese, East European and Soviet manufacturers. Zilog licensed the Z80 to the US-based Synertek and Mostek, which had helped them with initial production, as well as to a European second-source manufacturer SGS. ![]() It was also common in military applications, musical equipment such as synthesizers (like the Roland Jupiter-8), and coin-operated arcade games of the late 1970s and early 1980s, including Pac-Man. Although used in that role, the Z80 also became one of the most widely used CPUs in desktop computers and home computers from the 1970s to the mid-1980s. The Zilog Z80 is a software-compatible extension and enhancement of the Intel 8080 and, like it, was mainly aimed at embedded systems. With the revenue from the Z80, the company built its own chip factories and grew to over a thousand employees over the following two years. The first working samples were delivered in March 1976, and it was officially introduced on the market in July 1976. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company's first product. The Z80's original DIP40 chip package pinout ![]()
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