{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY621472E30LL-45ZSXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY621472E30LL-45ZSXI","canonicalUrl":"https://icboms.com/infineon/CY621472E30LL-45ZSXI","factsUrl":"https://icboms.com/api/mcp/products/CY621472E30LL-45ZSXI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon MoBL® SRAM, 4Mbit (256K x 16), Parallel interface, 45 ns access time, 2.2 V supply, -40°C to 85°C, 44-TSOP II, Tray.","salesMarkdown":"## 4 Mbit MoBL SRAM in 44-TSOP II — 45 ns access, 2.2 V core The Infineon CY621472E30LL-45ZSXI is a 4 Mbit MoBL® SRAM organized as 256K x 16 bits, accessed through a parallel interface. The 45 ns access time sets the read-cycle window for the host controller; at 2.2 V supply this part runs from a low-voltage rail. The -40°C to 85°C industrial temperature range suits it for factory automation, telecom line cards, and outdoor instrumentation. Housed in a 44-pin TSOP II package, it mounts on the board surface and occupies the same footprint as other 44-TSOP II 4 Mbit SRAMs. ## 2.2 V supply — rail planning and compatibility This SRAM operates at a nominal 2.2 V supply. That means a dedicated regulator or a 2.2 V rail from a multi-output supply. The MoBL series is designed for low active and standby current, so the 2.2 V rail can share a small LDO with other low-power peripherals without excessive droop.","metaTitle":"CY621472E30LL-45ZSXI MoBL SRAM, 4Mbit, 45 ns, 2.2 V","metaDescription":"Infineon CY621472E30LL-45ZSXI MoBL SRAM, 4Mbit (256K x 16), 45 ns access, 2.2 V supply, -40°C to 85°C, 44-TSOP II. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"series":"MoBL®","has_mpn":"CY621472","frame_size":"4Mbit","Access Time":"45 ns","memory_type":"Volatile","package_type":"Tray","Memory Format":"SRAM","mounting_type":"Surface Mount","interface_type":"Parallel","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"2.2","Memory Organization":"256K x 16","Operating Temperature High":"-40°C to 85°C (TA)","Write Cycle Time - Word, Page":"45ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.79","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2da0a8555194cfdd71e3f46bf91139f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY621472E30LL-45ZSXI?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing; the quote confirms stock position and lead time at that moment."},{"question":"What is the equivalent part for CY621472E30LL-45ZSXI?","answer":"The closest functional peer is the CY7C1041GN30-10BVXI, a 4 Mbit (256K x 16) parallel SRAM from the same Infineon family, but with a 10 ns access time and a BGA package. The 10 ns speed grade suits faster bus controllers, though the BGA footprint differs from the 44-TSOP II of the CY621472."},{"question":"Is CY621472E30LL-45ZSXI compatible with 3.3V?","answer":"No, the supply voltage is 2.2 V nominal. Operating at 3.3 V exceeds the rated maximum and will damage the device. A 3.3 V host requires level shifters on the I/O lines."},{"question":"What is the difference between CY621472E30LL-45ZSXI and CY621472E30LL-55ZSXI?","answer":"The only difference is the access time: 45 ns versus 55 ns. The 45 ns version provides tighter timing margin for faster bus controllers; the 55 ns version is more forgiving of slower address setup but may not meet cycle requirements above 18 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY621472E30LL-45ZSXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY621472E30LL-45ZSXI 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}}