{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BNL-15ZXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BNL-15ZXC","canonicalUrl":"https://icboms.com/infineon/CY7C1399BNL-15ZXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-15ZXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1399BNL-15ZXC, 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 3V–3.6V supply, parallel interface, 28-TSSOP (11.80mm width), commercial temperature 0°C to 70°C.","salesMarkdown":"## 15 ns access time — timing closure for the bus The CY7C1399BNL-15ZXC: This speed grade suits systems with moderate clock rates where address-to-data valid must complete within a single bus cycle. The asynchronous interface eliminates the need for a synchronising clock, simplifying the board-level timing closure work. Cypress has classified the CY7C1399BNL-15ZXC as Obsolete. ## Package and footprint — 28-TSSOP (11.80mm width) The surface-mount package is supplied in Tray form.","metaTitle":"Cypress CY7C1399BNL-15ZXC 256Kbit Asynchronous SRAM","metaDescription":"Obsolete Cypress CY7C1399BNL-15ZXC 256Kbit (32K x 8) asynchronous SRAM with 15 ns access time, 3V–3.6V supply, 28-TSSOP package.","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":"15 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":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c257168b8bd736a4b27a5c7d87cabcfb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BNL-15ZXC/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C1399BNL-15ZXC obsolete?","answer":"Yes, Cypress has listed the CY7C1399BNL-15ZXC as Obsolete in its product lifecycle status."},{"question":"Does CY7C1399BNL-15ZXC work with 3.3V?","answer":"Yes. The parallel interface is 3.3V-tolerant on the I/O pins, matching typical 3.3V logic families."},{"question":"What is the equivalent of CY7C1399BNL-15ZXC?","answer":"No official equivalent or cross-reference is recorded. A functionally equivalent part would be a 256 Kbit asynchronous SRAM with 32K x 8 organization, 15 ns access time, 3V–3.6V supply, and a 28-TSOP I footprint. Confirm pin compatibility from the respective datasheets before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BNL-15ZXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BNL-15ZXC 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}}