{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BNL-12ZXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BNL-12ZXCT","canonicalUrl":"https://icboms.com/infineon/CY7C1399BNL-12ZXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-12ZXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1399BNL-12ZXCT, 256Kbit (32K x 8) asynchronous SRAM, 12 ns access time, 3V–3.6V supply, 28-TSOP I package, Tape & Reel.","salesMarkdown":"CY7C1399BNL-12ZXCT is listed as Obsolete by Infineon. ## 12 ns access time in a 3.3V system This is a 256Kbit asynchronous SRAM organised as 32K x 8, with a 12 ns access time. The supply range is 3V to 3.6V, so it drops straight into a 3.3V rail without a regulator. Housed in a 28-TSOP I (0.465\", 11.80mm width) package, surface-mount. The supplier device package is 28-TSOP I. The 0.50 mm pitch is standard for this form factor; a two-layer board breaks out the outer rows cleanly. The Tape & Reel (TR) option suits automated pick-and-place. This limits it to indoor, office, or appliance environments.","metaTitle":"CY7C1399BNL-12ZXCT SRAM 256Kbit 12ns TSOP I Obsolete","metaDescription":"CY7C1399BNL-12ZXCT Infineon 256Kbit asynchronous SRAM, 12ns access time, 3.3V, 28-TSOP I. Obsolete status – sourced per RFQ. No direct replacement on record.","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":"Tape & Reel (TR)","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fef115cca883337317066bfca634e597.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-12ZXCT/alternatives.json"},"ai":{"faq":[{"question":"Can I use CY7C1399BNL-12ZXCT in a 3.3V system?","answer":"Yes, the supply range is 3V to 3.6V, so it works directly on a 3.3V rail without level translation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BNL-12ZXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BNL-12ZXCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}