{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1021B-15ZXE","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1021B-15ZXE","canonicalUrl":"https://icboms.com/infineon/CY7C1021B-15ZXE","factsUrl":"https://icboms.com/api/mcp/products/CY7C1021B-15ZXE","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1021B-15ZXE, 1Mbit asynchronous SRAM, 64K x 16 organization, 15 ns access time, parallel interface, 4.5 V to 5.5 V supply, -40°C to 125°C, 44-TSOP II (0.400\", 10.16 mm width), surface mount, tray.","salesMarkdown":"In a 5 V system running a moderate-speed bus — say a 16-bit microcontroller or DSP at 40 MHz — the 15 ns cycle keeps the memory synchronous with the CPU's memory controller timing, avoiding the throughput penalty of slower SRAMs. The parallel interface is straightforward: address and data buses are direct, no clock or refresh overhead, which simplifies the board-level integration for legacy or cost-sensitive designs. If your BOM already runs a 5 V bus, this part drops in without a level translator. No official replacement part number has been assigned by Infineon; any pin-compatible substitute would need to match the 44-TSOP II footprint, 5 V supply, 15 ns speed grade, and 64K x 16 organization.","metaTitle":"Infineon CY7C1021B-15ZXE 1Mbit Async SRAM, 15 ns, 44-TSOP II","metaDescription":"Infineon CY7C1021B-15ZXE 1Mbit asynchronous SRAM with 15 ns access time, 64K x 16 organization, -40°C to 125°C range, 44-TSOP II package.","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0fb2bf1fb1bf1eaa7b1a14798a1f21cb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1021B-15ZXE/alternatives.json"},"ai":{"faq":[{"question":"What is the access time of CY7C1021B-15ZXE?","answer":"This speed grade is suitable for processors running bus clocks up to about 40 MHz without wait states."},{"question":"What package does CY7C1021B-15ZXE use?","answer":"It comes in a 44-TSOP II package (0.400\" body width, 10.16 mm), surface-mount, supplied in tray format. The footprint is standard for asynchronous SRAMs of this density."},{"question":"What is the replacement for CY7C1021B-15ZXE?","answer":"Any substitute must match the 44-TSOP II footprint, 5 V supply, 15 ns access time, and 64K x 16 organization. We can help identify potential alternatives when you submit an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1021B-15ZXE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1021B-15ZXE 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}}