# Zilog Z80 8-Bit CPU Turns 50, Open-Source Replacement Nears Production Community-driven project aims to recreate the legendary chip in original DIP40 package. - **Source:** [Slashdot](https://brifing.si/source/0f34d58e-1ccd-45a6-ab82-2de4065dc7ad) - **Published:** 2026-07-20 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/bb9c168a-dde7-4408-a0e5-dcfde56ef001 ## Half-Century Legacy Launched in 1976, the Z80 powered iconic devices like Spectrum and Game Boy, shaping computing history. After 48 years of continuous production, it was retired in 2024, but its legacy lives on through open-source initiatives. ## Manufacturer's Final Bow Littelfuse, Zilog's parent company, announced discontinuation of Z80 wafer production in April 2024. Final orders closed in June, marking the official end for this industrial workhorse chip. ## Community-Powered Revival The FOSS Z80 project sprang into action post-retirement announcement. First prototype fabricated on SkyWater's 130nm process was functionally verified on GitHub. Now targeting drop-in DIP40 compatibility. ## Multi-Foundry Collaboration Leveraging open semiconductor programs from Efabless and GlobalFoundries, the project completed test runs across different processes. Current focus is perfecting the classic form factor. ## Preserving Hardware Heritage The open Z80 serves both retro enthusiasts and industrial equipment owners. As a replacement chip, it aims to extend the lifespan of legacy systems that still rely on this architecture. ## New Model for Tech Preservation This initiative proves discontinued commercial technologies can live on through open alternatives. Cloning iconic components like Z80 establishes a new paradigm for preserving digital heritage. ## Sources covering this story - https://hardware.slashdot.org/story/26/07/20/0046231/zilog-z80-8-bit-cpu-turns-50-open-source-replacement-heads-to-drop-in-dip40-silicon?utm_source=rss1.0mainlinkanon&utm_medium=feed — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._