{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY62256LL-55ZI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY62256LL-55ZI","canonicalUrl":"https://icboms.com/infineon/CY62256LL-55ZI","factsUrl":"https://icboms.com/api/mcp/products/CY62256LL-55ZI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon MoBL® series, CY62256LL-55ZI, 256Kbit (32K x 8) asynchronous SRAM, 55 ns access time, 4.5V to 5.5V supply, parallel interface, -40°C to 85°C industrial temperature, surface-mount 28-TSOP I package.","salesMarkdown":"## 55 ns asynchronous SRAM for 5V industrial buses The Infineon CY62256LL-55ZI is a 256Kbit (32K x 8) asynchronous SRAM from the MoBL series, built for 5V parallel buses in industrial-temperature environments. With a 55 ns access time and a matching 55 ns write cycle, it's sized for microcontroller external memory expansion, data buffers, or configuration storage in systems that need a fast, byte-wide scratchpad. The 28-TSOP I footprint keeps the board area tight while still being hand-solderable with a fine tip and steady hands. ## 55 ns access time — bus timing fit The 55 ns access time and 55 ns write cycle time are symmetric for read and write timing. ## Industrial temperature grade — where it goes Rated for -40°C to 85°C ambient, this SRAM is suited for factory automation, motor drives, outdoor telecom cabinets, and engine-bay electronics that see temperature swings. The 28-TSOP I package (0.465\" body width) is a standard fine-pitch SOJ-derivative; it's surface-mount only, so plan for reflow or careful hand-soldering. ## Lifecycle and sourcing The CY62256LL-55ZI is listed as Active on Infineon's product status, so there's no last-time-buy risk for new designs. It's RoHS non-compliant per the original spec, so check your assembly's exemption requirements if you're in a RoHS-restricted region.","metaTitle":"CY62256LL-55ZI Infineon MoBL SRAM, 256Kbit, 55 ns, 28-TSOP I","metaDescription":"Infineon CY62256LL-55ZI MoBL asynchronous SRAM, 256Kbit (32K x 8), 55 ns access time, 4.5V-5.5V supply, -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"MoBL®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"MoBL®","Package":"Bulk","Technology":"SRAM - Asynchronous","Access Time":"55 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.465\\\", 11.80mm Width)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Memory Organization":"32K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-TSOP I","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.06","stockQuantity":0,"priceTiers":[{"qty":283,"price":"$1.06000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/z34iey9b1u/CYPRS04175-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"Can I use CY62256LL-55ZI with a 3.3V supply?","answer":"No, the CY62256LL-55ZI requires a 4.5V to 5.5V supply. It is not rated for 3.3V operation. For a 3V alternative, consider the CY7C1399BN-12VXI, a 256Kbit SRAM with a 3.0V supply and 12 ns access time."},{"question":"What is the difference between CY62256LL-55ZI and CY62256LL-70ZI?","answer":"The primary difference is access time: the CY62256LL-55ZI has a 55 ns access time, while the CY62256LL-70ZI (not in our current data) would be a slower 70 ns variant. All other specs — 256Kbit, 5V supply, 28-TSOP I package, industrial temperature — are identical across the LL suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY62256LL-55ZI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY62256LL-55ZI 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}}