{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1041BNL-15ZXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1041BNL-15ZXCT","canonicalUrl":"https://icboms.com/infineon/CY7C1041BNL-15ZXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1041BNL-15ZXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1041BNL-15ZXCT, 4Mbit asynchronous SRAM, 256K x 16 organization, 15 ns access time, 4.5V ~ 5.5V supply, 44-TSOP II package, commercial temperature 0°C ~ 70°C, Tape & Reel.","salesMarkdown":"For a 5V DSP running at 40 MHz to 66 MHz, this gives enough margin to avoid wait states on back-to-back reads. If your system clock is faster than 66 MHz or you need zero dead cycles on a shared bus, you would typically step to a synchronous SRAM or a pipelined NoBL part — but for the installed base of 5V asynchronous designs, 15 ns is the performance tier that keeps the BOM compatible. For sustainment programs — medical imaging, avionics test equipment, legacy telecom — this part is now sourced through independent distribution on a last-time-buy or surplus basis. ## Package and footprint — what the layout engineer needs The 44-TSOP II (0.400\" body width, 10.16 mm) is a surface-mount package with gull-wing leads on 0.8 mm pitch. The footprint matches JEDEC MO-142 variation, and the same land pattern serves the entire CY7C1041B family. Decoupling: place a 0.1 µF ceramic within 3 mm of each VDD pin, plus a 10 µF bulk tantalum near the package. The supply range is 4.5V to 5.5V, so a 5V ±10% rail is within spec. No thermal pad or exposed paddle — all heat dissipates through the leads and the PCB copper.","metaTitle":"Infineon CY7C1041BNL-15ZXCT 4Mbit Async SRAM, 15 ns","metaDescription":"Infineon CY7C1041BNL-15ZXCT 4Mbit asynchronous SRAM, 15 ns access time, 256K x 16 organization, 4.5V-5.5V supply, 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":"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":"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":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C1041BNL-15ZXCT?","answer":"Infineon has not published an official successor order code for the CY7C1041BNL-15ZXCT. For a pin-compatible drop-in, look at the CY7C1041DV33 series (3.3V) or CY7C1041GE30 (3.0V) — but those operate at lower supply voltages and will not work in a 5V-only socket without a voltage regulator. For 5V designs, the closest functional equivalent is another 4Mbit async SRAM in 44-TSOP II from Alliance Memory (AS7C34096A) or ISSI (IS61WV102416BLL), though pinout and timing should be verified against your layout."},{"question":"Is CY7C1041BNL-15ZXCT RoHS compliant?","answer":"The suffix 'CT' in the order code typically indicates a lead-free, RoHS-compliant finish for Infineon/Cypress SRAMs. The Tape & Reel packaging is the shipping medium; the device itself is the same RoHS-compliant die and package as the tube-delivered variants. No separate RoHS certificate is needed if your incoming inspection accepts the standard Cypress/Infineon RoHS declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1041BNL-15ZXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1041BNL-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}}