{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY62128BLL-55ZRIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY62128BLL-55ZRIT","canonicalUrl":"https://icboms.com/infineon/CY62128BLL-55ZRIT","factsUrl":"https://icboms.com/api/mcp/products/CY62128BLL-55ZRIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies MoBL® asynchronous SRAM, CY62128BLL-55ZRIT, 1Mbit (128K x 8), 55 ns access time, 4.5V-5.5V supply, -40°C to +85°C, 32-RTSOP package, Bulk.","salesMarkdown":"## 1 Mbit parallel SRAM for 5 V legacy buses The CY62128BLL-55ZRIT is a 1 Mbit asynchronous SRAM from Infineon's MoBL® series, organized as 128K x 8 bits with a 55 ns access time. ## 55 ns access and 5 V supply — what they mean for the bus The 55 ns access time sets the read-cycle floor: the processor must stretch its bus wait states to accommodate this window. On a 20 MHz bus (50 ns cycle), one wait state covers the access; at 25 MHz (40 ns cycle), two wait states are needed unless the memory controller supports a variable latency. The part draws its specified standby and active current at the nominal 5 V level; a drop to 4.5 V increases access time slightly but stays within the 55 ns max over the full temperature range. Asynchronous interface means no clock is needed — the chip select and output enable gates the data onto the bus directly. This simplifies the PCB layout compared to synchronous SRAM, but the address hold time relative to chip select must still meet the 55 ns write-cycle spec. The 0.50 mm pin pitch and exposed pad require a solder-paste stencil aperture sized per the datasheet land pattern to avoid bridging during reflow.","metaTitle":"Infineon CY62128BLL-55ZRIT SRAM, 1Mbit, 55ns, 32-RTSOP","metaDescription":"Infineon MoBL® CY62128BLL-55ZRIT asynchronous SRAM, 1Mbit (128K x 8), 55ns access, 4.5-5.5V, -40°C to 85°C. Active lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":"MoBL®","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"MoBL®","Package":"Bulk","Technology":"SRAM - Asynchronous","Access Time":"55 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"32-TFSOP (0.724\\\", 18.40mm Width)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Memory Organization":"128K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"32-RTSOP","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.64","stockQuantity":0,"priceTiers":[{"qty":183,"price":"$1.64000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dc1c4143e0cfdafe42dc18fcc124b6de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can CY62128BLL-55ZRIT be replaced with CY62128BLL-55ZI?","answer":"Confirm the package and temperature grade against the BOM before substituting."},{"question":"What is the memory organization of CY62128BLL-55ZRIT?","answer":"Organized as 128K words by 8 bits (128K x 8), giving a total of 1 Mbit of storage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY62128BLL-55ZRIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY62128BLL-55ZRIT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}