Cabe Atwell writes that the Zilog Z80 is celebrating its 50th anniversary this July. Developed in 1976 by former Intel engineers, it became a dominant 8-bit processor largely due to its instruction compatibility with the existing Intel 8080 software ecosystem. This strategic design allowed manufacturers to adopt more advanced features like built-in DRAM refresh and improved interrupt systems without rewriting their entire codebases.
- Integrated into legendary hardware including Pac-Man arcade cabinets, ZX Spectrum, and TI graphing calculators.
- Launched at a competitive $25 price point to encourage mass market adoption.
- Community-driven silicon replacements are being developed following Littelfuse's cessation of Zilog orders in 2024.
- Integrated into legendary hardware including Pac-Man arcade cabinets, ZX Spectrum, and TI graphing calculators.
- Launched at a competitive $25 price point to encourage mass market adoption.
- Community-driven silicon replacements are being developed following Littelfuse's cessation of Zilog orders in 2024.
