{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY15B128Q-SXA","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY15B128Q-SXA","canonicalUrl":"https://icboms.com/infineon/CY15B128Q-SXA","factsUrl":"https://icboms.com/api/mcp/products/CY15B128Q-SXA","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies F-RAM™ series, CY15B128Q-SXA 128Kbit FRAM, SPI interface, 40 MHz clock, 2V-3.6V supply, -40°C to 85°C, 8-SOIC package, Tube.","salesMarkdown":"## Where this FRAM fits on the board The CY15B128Q-SXA is a 128Kbit non-volatile FRAM with an SPI interface, clocked at 40 MHz. It stores configuration parameters, calibration constants, or data-log buffers in a system that cannot tolerate the write-cycle wear of EEPROM or the erase-before-write latency of flash. The 8-pin SOIC footprint drops straight onto a 0.154-inch-wide body with 1.27 mm pitch, a common layout for MCU companion memory. ## FRAM behaviour that changes the firmware design Unlike EEPROM or NOR flash, FRAM writes at bus speed with no write-cycle penalty — the 40 MHz SPI clock is the only speed limit. There is no page buffer to manage, no sector-erase command, and no wear-leveling algorithm in the driver. A firmware engineer can treat this memory like a byte-addressable SRAM that happens to retain data after power loss. ## Lifecycle and sourcing posture The part is marked RoHS non-compliant per the manufacturer's declaration. For designs requiring RoHS compliance, the buyer should verify the specific date-code or request the RoHS-compliant variant from Infineon's F-RAM family.","metaTitle":"Infineon CY15B128Q-SXA FRAM, 128Kbit SPI 40MHz SOIC-8","metaDescription":"Infineon CY15B128Q-SXA 128Kbit FRAM, SPI 40MHz, 2V-3.6V, -40°C to 85°C, 8-SOIC. Active production, available to order. Request a quote.","metaKeywords":null},"attributes":{"series":"F-RAM™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"F-RAM™","Package":"Tube","Technology":"FRAM (Ferroelectric RAM)","Memory Size":"128Kbit","Memory Type":"Non-Volatile","Memory Format":"FRAM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"40 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"2V ~ 3.6V","Memory Organization":"16K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.26","stockQuantity":0,"priceTiers":[{"qty":198,"price":"$4.10000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8c22eed8a238785680388ce4b03e7875.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the memory size and interface of CY15B128Q-SXA?","answer":"It is a 128Kbit (16K x 8) non-volatile FRAM with an SPI interface running at up to 40 MHz."},{"question":"Is CY15B128Q-SXA RoHS compliant?","answer":"Infineon lists this part as RoHS non-compliant. Verify the specific date-code or request the RoHS-compliant variant from the F-RAM series if your assembly process requires it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY15B128Q-SXA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY15B128Q-SXA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}