{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1021B-12VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1021B-12VC","canonicalUrl":"https://icboms.com/infineon/CY7C1021B-12VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1021B-12VC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1021B-12VC, 1Mbit asynchronous SRAM, 64K x 16 organization, 12 ns access time, parallel interface, 4.5V-5.5V supply, 0°C-70°C, 44-SOJ package, Tube.","salesMarkdown":"## 12 ns asynchronous SRAM — what the access time buys you The Cypress CY7C1021B-12VC is a 1Mbit asynchronous SRAM organized as 64K x 16 bits, with a 12 ns access time that sets the bus-cycle floor for the memory interface. At 12 ns, this part keeps up with fast 16-bit microcontrollers and DSPs without inserting wait states, provided the address-to-data path stays within the timing budget. The write cycle time matches the read access at 12 ns, so back-to-back writes do not stall the bus. Supply range is 4.5V to 5.5V, which aligns with legacy 5 V logic families. The 44-SOJ surface-mount package (10.16 mm body width) is a legacy footprint; verify the existing board's SOJ land pattern before committing the BOM.","metaTitle":"CY7C1021B-12VC Cypress 1Mbit Async SRAM, 12 ns, 44-SOJ","metaDescription":"CY7C1021B-12VC Cypress 1Mbit asynchronous SRAM, 64K x 16, 12 ns access time, 4.5V-5.5V, 0°C-70°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":"Tube","Technology":"SRAM - Asynchronous","Access Time":"12 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":"0°C~70°C(TA)","Supplier Device Package":"44-SOJ","Write Cycle Time - Word, Page":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0fb2bf1fb1bf1eaa7b1a14798a1f21cb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1021B-12VC/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C1021B-12VC obsolete and what is the replacement?","answer":"Yes, Cypress has marked the CY7C1021B-12VC as Obsolete. For a BOM line needing this exact part, the supply path is through independent distribution — last-time-buy inventory or surplus stock. If the design can accommodate a different package, a newer asynchronous SRAM may be an alternative, but no pin-compatible drop-in is documented here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1021B-12VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1021B-12VC 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}}