{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1381D-133AXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1381D-133AXIT","canonicalUrl":"https://icboms.com/infineon/CY7C1381D-133AXIT","factsUrl":"https://icboms.com/api/mcp/products/CY7C1381D-133AXIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C1381D-133AXIT, synchronous SDR SRAM, 18Mbit (512K×36), 133 MHz clock, 6.5 ns access time, 3.135-3.6 V supply, 100-LQFP, -40 to 85°C, Tape & Reel.","salesMarkdown":"## Obsolete — BOM-fit and sourcing reality The CY7C1381D-133AXIT: The 18Mbit synchronous SDR SRAM with 512K×36 organization, 133 MHz clock, and 6.5 ns access time was designed for high-performance cache and buffer applications in networking, telecom, and industrial controllers. The -40 to 85°C industrial temperature grade suited it for outdoor or unconditioned environments. ## Parametric profile and package The 100-LQFP package with a 14×20 mm body is a standard footprint for synchronous SRAMs of this density. The 3.135–3.6 V supply rail is typical for 3.3 V nominal SRAM families — the 0.465 V tolerance window means the supply must be regulated within ±7% of 3.3 V to stay in spec. At 133 MHz, the parallel memory interface delivers a burst data rate of 532 MB/s (32-bit bus at double data rate per clock edge). The 6.5 ns access time sets the minimum read-to-data-valid window from the address strobe.","metaTitle":"CY7C1381D-133AXIT 18Mbit SRAM, 133 MHz, 100-LQFP","metaDescription":"Infineon CY7C1381D-133AXIT synchronous SDR SRAM, 18Mbit (512K×36), 133 MHz clock, 6.5 ns access, -40 to 85°C. Obsolete — sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"CY7C1381D-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":"CY7C1381","Memory Organization":"512K x 36","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 package does the CY7C1381D-133AXIT come in?","answer":"The part ships in Tape & Reel (TR) packaging as a 100-LQFP (100-TQFP) surface-mount device."},{"question":"What technology does this part use?","answer":"The CY7C1381D-133AXIT is a synchronous SDR SRAM — a clocked static RAM with a parallel interface designed for pipelined burst access at high clock rates."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1381D-133AXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1381D-133AXIT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:06:06.776Z","lastPublished":"2026-07-21T02:06:06.776Z","indexable":true}}