{"product_id":"vintage-semi-np5sb-6445p-ic-chip-purple-gold-ceramic-cdip-24-rare-collectible","title":"Vintage SEMI NP5SB 6445P IC Chip Purple Gold Ceramic CDIP-24 Rare Collectible","description":"The chip features the stylistically blocky, retro \"SEMI\" logo. This signifies Semi Processes Inc. (SPI) (often abbreviated or marketed as SEMI), a boutique semiconductor manufacturer prominent in the late 1970s and 1980s. Unlike giants like Intel or AMD, SEMI specialized in custom fabrication, proprietary CMOS processes, second-sourcing established architectures, and high-reliability logic arrays.Part Code and Date CryptographyNP5SB: This is the primary internal designator or part family code. Given SEMI's focus on high-speed communications and data interfaces during the early-to-mid 1980s, chips of this form factor and style generally mapped to high-reliability military\/aerospace logic devices, Early Static RAM (SRAM) memory interfaces, or specialized operational bus controllers.6445P: This is a manufacturing tracking stamp. The \"P\" corresponds to the assembly location in the Philippines, corroborating the silver-stamped marking on the underbelly of the ceramic package.","brand":"SEMI Processes Inc","offers":[{"title":"Default Title","offer_id":49611885871242,"sku":"Warehouse Safe","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/0312\/1034\/files\/2736da18-e877-477b-9659-ef9cc51b1d34.jpg?v=1782740282","url":"https:\/\/revival-boutique.com\/products\/vintage-semi-np5sb-6445p-ic-chip-purple-gold-ceramic-cdip-24-rare-collectible","provider":"Revival Boutique","version":"1.0","type":"link"}