{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1041D-10ZSXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1041D-10ZSXI","canonicalUrl":"https://icboms.com/infineon/CY7C1041D-10ZSXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C1041D-10ZSXI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1041D-10ZSXI, 4Mbit (256K x 16) Asynchronous SRAM, 10 ns access time, 5V supply, Parallel interface, -40°C to 85°C, 44-TSOP II, Tube.","salesMarkdown":"## 4Mbit async SRAM with 10 ns access — the timing-critical cache line The Infineon CY7C1041D-10ZSXI is a 4Mbit asynchronous SRAM organized as 256K x 16 bits, delivering a 10 ns access time that suits high-speed cache, FIFO buffers, and real-time control memory in networking gear and industrial controllers. Packaged in a 44-TSOP II (0.400\" body width, 10.16 mm), it is a surface-mount footprint common to mid-density asynchronous SRAMs, making it a drop-in for many existing board layouts. In a system with a 40 MHz bus, that 10 ns window gives the designer headroom to add glue logic or a CPLD between the controller and the SRAM without violating timing closure. No official successor part is listed by Infineon for this specific variant. ## Package note for the rework bench The 44-TSOP II is a thin small-outline package with 0.8 mm pitch gull-wing leads. The 10.16 mm body width means it sits on a standard 0.65 mm pitch socket for programming or test.","metaTitle":"CY7C1041D-10ZSXI Infineon 4Mbit Async SRAM, 10 ns, 44-TSOP","metaDescription":"Infineon CY7C1041D-10ZSXI 4Mbit (256K x 16) asynchronous SRAM with 10 ns access time, 5V supply, industrial temp -40°C to 85°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":"Tube","Technology":"SRAM - Asynchronous","Access Time":"10 ns","Memory Size":"4Mbit","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":"CY7C1041","Memory Organization":"256K x 16","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"44-TSOP II","Write Cycle Time - Word, Page":"10ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.4575","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2bd55a639f96a1b8545cf8c89e3919b0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1041D-10ZSXI/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C1041D-10ZSXI obsolete?","answer":"Yes, Infineon lists this part as Obsolete. No further production runs or last-time-buy windows are available. The only supply channel is surplus inventory from independent distributors."},{"question":"What is the difference between CY7C1041D-10ZSXI and CY7C1041D-10ZSXIT?","answer":"The 'T' suffix (CY7C1041D-10ZSXIT) indicates Tape & Reel packaging instead of Tube. The silicon, speed grade, and package are identical. If your pick-and-place line is set up for reels, the 'T' variant avoids a tube-to-reel transfer step."},{"question":"Can I use CY7C1041D-10ZSXI in a 3.3V system?","answer":"It is not rated for 3.3V operation. A 3.3V system would need a level translator on the address/data bus and a separate 5V rail for the SRAM, or a different 3.3V-rated SRAM."},{"question":"What is the replacement for CY7C1041D-10ZSXI?","answer":"Infineon does not list a direct replacement for this exact order code. The base product number CY7C1041 covers multiple speed and package variants; a cross-reference search against that base may find a compatible part, but any substitution requires verifying pinout, timing, and supply voltage against the existing design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1041D-10ZSXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1041D-10ZSXI 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}}