{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1020B-15ZXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1020B-15ZXCT","canonicalUrl":"https://icboms.com/infineon/CY7C1020B-15ZXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1020B-15ZXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1020B-15ZXCT, asynchronous SRAM, 512Kbit (32K x 16), 15 ns access time, parallel interface, 4.5V–5.5V supply, 0°C to 70°C, 44-TSOP II, Tape & Reel.","salesMarkdown":"The CY7C1020B-15ZXCT: No new production is planned; the last-time-buy window has closed. For new designs or BOM sustainment, the part must be sourced from independent inventory or a verified surplus channel. ## 15 ns access time and 5V-only supply rail This is a 512Kbit asynchronous SRAM organized as 32K words by 16 bits. The 15 ns access time sets the read-cycle window for the bus master — at 5V nominal, a 15 ns window is tight for legacy 8-bit controllers but comfortable for 16-bit CPLD-based state machines or fast DSPs. The supply range is 4.5V to 5.5V; the part does not operate at 3.3V. The write cycle time matches the read access at 15 ns, so back-to-back writes to the same page incur no extra dead cycles. ## 44-TSOP II footprint and commercial temperature grade Housed in a 44-TSOP II package — 0.400-inch body width, 10.16 mm, surface-mount.","metaTitle":"CY7C1020B-15ZXCT SRAM 512Kbit 15ns 44-TSOP II Obsolete","metaDescription":"Infineon CY7C1020B-15ZXCT asynchronous SRAM, 512Kbit (32K x 16), 15 ns access time, 4.5V–5.5V, 0°C–70°C, 44-TSOP II.","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":"512Kbit","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":"CY7C1020","Memory Organization":"32K x 16","Operating Temperature":"0°C ~ 70°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/46835e03ed03fca647fb9f9aa23e92c6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C1020B-15ZXCT obsolete?","answer":"Yes, the CY7C1020B-15ZXCT is listed as Obsolete. No new production is planned. Sourcing is limited to independent inventory or surplus channels."},{"question":"Does CY7C1020B-15ZXCT work with a 3.3V supply?","answer":"No. The supply range is 4.5V to 5.5V. Operating at 3.3V is outside the specified range and will not guarantee functionality."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1020B-15ZXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1020B-15ZXCT 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}}