{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1021BN-15VXET","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1021BN-15VXET","canonicalUrl":"https://icboms.com/infineon/CY7C1021BN-15VXET","factsUrl":"https://icboms.com/api/mcp/products/CY7C1021BN-15VXET","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1021BN-15VXET, 1 Mbit asynchronous SRAM, 64K×16 organization, 15 ns access time, 4.5–5.5 V supply, -40 to 125 °C, 44-SOJ surface-mount, tape and reel.","salesMarkdown":"## 15 ns asynchronous SRAM in a 5 V system Packaged in a 44-SOJ (BSOJ) surface-mount body, this part was designed for high-speed cache, buffer, and scratchpad memory in industrial and telecom equipment where 5 V logic remains the standard. In a 5 V system with a 33 MHz or slower bus, this gives enough margin for address decoding, buffer delays, and PCB trace propagation without adding wait states. If your controller runs faster than 33 MHz or you need zero-wait-state operation at higher clock rates, you would step to a 10 ns or 8 ns part — but for the majority of 5 V industrial designs this is the sweet spot. ## 44-SOJ footprint and rework considerations The 44-SOJ (Small Outline J-lead) package has a 10.16 mm body width and a 0.400 inch pitch. For rework, the J-lead profile needs a hot-air nozzle that heats the body evenly; a standard SOIC nozzle leaves cold joints on the inner rows.","metaTitle":"CY7C1021BN-15VXET Infineon 1Mbit Async SRAM, 15 ns, 44-SOJ","metaDescription":"CY7C1021BN-15VXET Infineon 1Mbit asynchronous SRAM, 64K×16 parallel, 15 ns access time, 4.5–5.5 V, -40 to +125°C, 44-SOJ.","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-BSOJ (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-SOJ","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b005a36e8e3c18743572ba4643b8046f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1021BN-15VXET/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C1021BN-15VXET?","answer":"There is no official successor from Infineon. If your design can move to a 3.3 V supply, the CY7C1021DV33 family is a functional equivalent in the same 1 Mbit asynchronous SRAM class, but verify pin compatibility on the 44-SOJ footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1021BN-15VXET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1021BN-15VXET 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}}