{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1381KV33-133AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1381KV33-133AXC","canonicalUrl":"https://icboms.com/infineon/CY7C1381KV33-133AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1381KV33-133AXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C1381KV33-133AXC synchronous SRAM, 18Mbit (512K x 36), 133 MHz clock, 6.5 ns access time, 3.135V–3.6V supply, 0°C–70°C, 100-TQFP (14x20) tray.","salesMarkdown":"## 18 Mbit synchronous SRAM — 512K x 36 at 133 MHz The CY7C1381KV33-133AXC: The 36-bit-wide word means a single read fetches a full 32-bit data word plus 4 parity/ECC bits in one cycle — useful in cache tag or network buffer applications where the extra bits carry metadata or error correction without a second bus transaction. The parallel memory interface and SDR (single data rate) architecture mean the address is latched on the rising clock edge and data is valid on the next rising edge — no DDR timing complexity, but the bus width compensates with throughput: at 133 MHz, the peak bandwidth is 133 MT/s × 36 bits = 4.8 Gbit/s (598 MB/s). ## Package and board-fit — 100-TQFP (14x20) Housed in a 100-lead TQFP with a 14x20 mm body (Supplier Device Package 100-TQFP), the 0.5 mm pitch demands a controlled-impedance PCB stack-up for the 133 MHz clock and 36-bit data bus. Supplied in tray format — typical for production-level quantities where pick-and-place lines feed from JEDEC trays rather than tape-and-reel. For rework, a hot-air profile with a top-side preheat around 150°C and a peak of 245°C (lead-free) is standard; the moisture sensitivity level (MSL) should be confirmed from the latest Infineon PCN to determine bake requirements before reflow. ## Active lifecycle — no obsolescence risk Listed as Active (current) by Infineon — no end-of-life notice or last-time-buy window. This part is in standard production and can be sourced through authorized distribution channels. ## Supply voltage and temperature grade This limits deployment to indoor, controlled-environment equipment — networking switches, base stations, storage arrays — not automotive or industrial extended-temp applications.","metaTitle":"Infineon CY7C1381KV33-133AXC 18Mbit SRAM, 133 MHz, 100-TQFP","metaDescription":"Infineon CY7C1381KV33-133AXC 18Mbit synchronous SRAM, 512K x 36, 133 MHz clock, 6.5 ns access. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","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","Product Status":"Active","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":"0°C~70°C(TA)","Supplier Device Package":"100-TQFP (14x20)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$30.9750","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/448034a41a4bdebecbacbb9133f8ac7a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1381KV33-133AXC/alternatives.json"},"ai":{"faq":[{"question":"What is the memory organization and clock speed of CY7C1381KV33-133AXC?","answer":"The 36-bit word width allows a single read to fetch a 32-bit data word plus 4 bits for parity or ECC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1381KV33-133AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1381KV33-133AXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}