{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1399BN-15ZXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1399BN-15ZXCT","canonicalUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1399BN-15ZXCT, 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 3V to 3.6V supply, parallel interface, 28-TSSOP (TSOP I) package, 0°C to 70°C operating temperature.","salesMarkdown":"Infineon (formerly Cypress) lists the CY7C1399BN-15ZXCT as Obsolete. This part is no longer manufactured and is not available through the factory channel. ## 15 ns access time — timing budget fit This speed grade suits 8-bit microcontroller and DSP designs with bus cycles in the 20–30 ns range, such as those using a 33–50 MHz system clock. ## Package and temperature grade — board-fit constraints Supplied as Tape & Reel (TR) for automated assembly. The device is housed in a 28-TSSOP (0.465\", 11.80 mm width) package, with the supplier device package designated 28-TSOP I. This is a surface-mount, thin small-outline package with a standard 0.65 mm pitch.","metaTitle":"Infineon CY7C1399BN-15ZXCT 256Kbit Async SRAM, 15 ns","metaDescription":"Obsolete Infineon CY7C1399BN-15ZXCT 256Kbit asynchronous SRAM, 32K x 8, 15 ns access, 3V-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":"Tape & Reel (TR)","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/69ff54d69906280bfa12bf5ffcc96488.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1399BN-15ZXCT/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this brand provide for CY7C1399BN-15ZXCT (RoHS, REACH, UL, IEC)?","answer":"The part is listed as Tape & Reel (TR) and is from Infineon, which typically provides RoHS and REACH compliance data for its products. Specific compliance documentation, including the exact RoHS/REACH status for this obsolete order code, should be requested at quote time from the distributor handling the surplus lot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1399BN-15ZXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1399BN-15ZXCT 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}}