{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1383D-133AXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1383D-133AXIT","canonicalUrl":"https://icboms.com/infineon/CY7C1383D-133AXIT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1383D-133AXIT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress/Infineon CY7C1383D-133AXIT, 18Mbit synchronous SDR SRAM organized 1M x 18, 133 MHz clock, 6.5 ns access time, 3.135V–3.6V supply, 100-TQFP, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## What this synchronous SRAM does on the bus The Cypress (now Infineon) CY7C1383D-133AXIT is an 18 Mbit synchronous SDR (single data rate) SRAM organized as 1M x 18 bits. ## 6.5 ns access time and 133 MHz clock — what they mean for timing closure At 133 MHz (7.5 ns cycle), that leaves about 1 ns of setup margin before the next clock edge — tight, but workable with controlled impedance traces under 50 mm. The SDR interface latches data on each rising edge, so the bus turnaround penalty is one dead cycle between read and write. For back-to-back read throughput, the pipeline delivers one word per clock after the initial latency. No official successor part number appears in the record. The 100-TQFP footprint is shared across the CY7C1383D density range, so a drop-in replacement within the family may exist — verify pin compatibility against the datasheet before committing a board spin. ## Package and mounting notes for the 100-TQFP The package is MSL 3, so if the moisture barrier bag has been open longer than the floor-life window, a bake at 125°C for 24 hours is required before reflow. Tape & Reel (TR) packaging feeds directly into automated pick-and-place lines.","metaTitle":"CY7C1383D-133AXIT Cypress/Infineon 18Mbit SDR SRAM, 133 MHz","metaDescription":"CY7C1383D-133AXIT 18Mbit synchronous SDR SRAM, 1M x 18, 133 MHz clock, 6.5 ns access, 100-TQFP, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C1383D-133AXIT","Package":"Tape & Reel (TR)","Technology":"SRAM - Synchronous, SDR","Access Time":"6.5 ns","Memory Size":"18Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Clock Frequency":"133 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3.135V ~ 3.6V","Base Product Number":"CY7C1383","Memory Organization":"1M x 18","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"100-TQFP (14x20)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/36f052e4a5ca20871c20109ba923d460.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C1383D-133AXIT?","answer":"The CY7C1383D base product number covers a family of synchronous SRAMs in the same 100-TQFP package — a higher-density or speed-grade variant within that family may be pin-compatible, but you must verify against the datasheet before ordering."},{"question":"Can CY7C1383D-133AXIT be used in existing designs?","answer":"Yes, if you already have the part qualified on your board, it will function as designed. The concern is long-term supply — since it is obsolete, you will need to source from surplus inventory or plan a replacement for future production runs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1383D-133AXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1383D-133AXIT 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}}