{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1021BN-15ZSXE","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1021BN-15ZSXE","canonicalUrl":"https://icboms.com/infineon/CY7C1021BN-15ZSXE","factsUrl":"https://icboms.com/api/mcp/products/CY7C1021BN-15ZSXE","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1021BN-15ZSXE, 1Mbit (64K x 16) asynchronous SRAM, 15 ns access time, parallel interface, 4.5 V to 5.5 V supply, -40°C to 125°C, 44-TSOP II surface-mount package, Tray.","salesMarkdown":"## 64K x 16 — why the 16-bit width matters The 64K x 16 organization matches the native data bus width of 16-bit MCUs and DSPs, so a single chip delivers the full word in one access cycle. A design that needs 1 Mbit of SRAM on an 8-bit bus would use two 512 Kbit x 8 parts and twice the board area; this part collapses that into one 44-TSOP II footprint. The 15 ns write cycle time — same as the read access — keeps back-to-back writes tight, which matters when the controller is bursting data into a frame buffer or trace log. Infineon lists the CY7C1021BN-15ZSXE as obsolete. That means no further factory orders, no last-time-buy window, and no official successor part number from Infineon. ## 44-TSOP II — footprint and handling The 44-TSOP II package (0.400 inch body width, 10.16 mm) is a standard thin small-outline package with gull-wing leads on 0.8 mm pitch. It is surface-mount only, so the reflow profile follows the standard JEDEC MSL rating — verify the moisture sensitivity level on the bag before baking.","metaTitle":"Infineon CY7C1021BN-15ZSXE 1Mbit Async SRAM, 15 ns, 44-TSOP","metaDescription":"Infineon CY7C1021BN-15ZSXE 1Mbit asynchronous SRAM, 15 ns access, 64K x 16, 4.5V-5.5V, -40°C to 125°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":"Tray","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~125°C(TA)","Supplier Device Package":"44-TSOP II","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.4100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b005a36e8e3c18743572ba4643b8046f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1021BN-15ZSXE/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C1021BN-15ZSXE obsolete or EOL?","answer":"Yes, Infineon lists the CY7C1021BN-15ZSXE as obsolete. The only supply channel is the independent distribution market — surplus and new-old-stock inventory."},{"question":"What is the replacement for CY7C1021BN-15ZSXE?","answer":"Infineon does not list an official replacement for the CY7C1021BN-15ZSXE. Without an official cross-reference, the best approach is to search for asynchronous SRAMs with those exact parametric constraints."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1021BN-15ZSXE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1021BN-15ZSXE 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}}