{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1021BN-15ZXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1021BN-15ZXIT","canonicalUrl":"https://icboms.com/infineon/CY7C1021BN-15ZXIT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1021BN-15ZXIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1021BN-15ZXIT, 1Mbit asynchronous SRAM, 64K x 16 organization, 15 ns access time, 4.5V to 5.5V supply, parallel interface, -40°C to 85°C industrial temperature, 44-TSOP II package, Tape & Reel.","salesMarkdown":"The CY7C1021BN-15ZXIT: The 64K x 16 organization provides a 16-bit-wide data bus. ## 5V-only supply — legacy system fit The supply range is 4.5V to 5.5V, so this is a 5V-only part. It won't work on a 3.3V bus without level shifters. If your design is a legacy 5V system — say an older industrial controller, a test instrument, or a telecom line card still running on 5V logic — this SRAM plugs straight in. The write cycle time matches the read access time at 15 ns, so back-to-back writes run at the same speed as reads. ## Industrial temperature grade — where it goes The 44-TSOP II package has a 10.16 mm body width. Ships on Tape & Reel. Infineon lists the CY7C1021BN-15ZXIT as obsolete. That means the manufacturer no longer produces it, and the only channel to source it is the independent surplus/broker market. The -15ZXIT is the industrial-temperature, lead-free, Tape & Reel variant.","metaTitle":"Infineon CY7C1021BN-15ZXIT 1Mbit Async SRAM, 15 ns","metaDescription":"Infineon CY7C1021BN-15ZXIT 1Mbit asynchronous SRAM, 64K x 16, 15 ns access time, 4.5V-5.5V supply, -40°C to 85°C.","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":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"44-TSOP (0.400\\\", 10.16mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C1021","Memory Organization":"64K x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"44-TSOP II","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b005a36e8e3c18743572ba4643b8046f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C1021BN-15ZXIT and how do I get a price?","answer":"The CY7C1021BN-15ZXIT is obsolete from the manufacturer, but we source it through independent distribution. Submit an RFQ — we confirm availability and current pricing at quote time. No stock or price is published because the surplus channel is dynamic."},{"question":"Is CY7C1021BN-15ZXIT a drop-in replacement for CY7C1021BN-15ZXC?","answer":"Yes, the two parts are pin-compatible and share the same 44-TSOP II package, 1 Mbit organization, and 15 ns access time. The -15ZXIT can replace the -15ZXC in any application, but the reverse may not hold if the system requires the wider temperature range."},{"question":"What is the lead time for CY7C1021BN-15ZXIT from distributors?","answer":"Because this part is obsolete, there is no standard factory lead time. Availability depends on surplus inventory. Submit an RFQ — we check current stock and provide a lead-time estimate at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1021BN-15ZXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1021BN-15ZXIT 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}}