{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BNL-12ZXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BNL-12ZXC","canonicalUrl":"https://icboms.com/infineon/CY7C1399BNL-12ZXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-12ZXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C1399BNL-12ZXC asynchronous SRAM, 256Kbit (32K x 8), 12 ns access time, 3.0 V to 3.6 V supply, 28-TSOP I package, tray.","salesMarkdown":"## 12 ns asynchronous SRAM for legacy bus interfaces The CY7C1399BNL-12ZXC is a 256Kbit asynchronous SRAM organized as 32K x 8, with a 12 ns access time that sets the read-cycle timing floor for a bus-interface design — at 12 ns the part can keep pace with a 66 MHz bus without wait states, but a faster 8 ns or 10 ns part would be needed for a 100 MHz bus. The 12 ns write cycle time (word, page) matches the read access — no asymmetric timing penalty in a mixed-read/write workload. ## Package and board-fit note Surface-mount mounting, commercial temperature grade (0°C to 70°C). The tray packaging means the parts are shipped in antistatic trays, not tape-and-reel — relevant for pick-and-place feeder setup if a reel is expected.","metaTitle":"Infineon CY7C1399BNL-12ZXC 256Kbit Async SRAM, 12 ns","metaDescription":"Infineon CY7C1399BNL-12ZXC 256Kbit (32K x 8) asynchronous SRAM, 12 ns access time, 3.0-3.6V, 28-TSOP I.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","Technology":"SRAM - Asynchronous","Access Time":"12 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.465\\\", 11.80mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"CY7C1399","Memory Organization":"32K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-TSOP I","Write Cycle Time - Word, Page":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fef115cca883337317066bfca634e597.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-12ZXC/alternatives.json"},"ai":{"faq":[{"question":"What is the memory organization and access time of CY7C1399BNL-12ZXC?","answer":"256Kbit organized as 32K x 8, with a 12 ns access time and a matching 12 ns write cycle time (word, page)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BNL-12ZXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BNL-12ZXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:07:46.531Z","lastPublished":"2026-07-21T02:07:46.531Z","indexable":true}}