{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1381D-133AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1381D-133AXC","canonicalUrl":"https://icboms.com/infineon/CY7C1381D-133AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1381D-133AXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C1381D-133AXC synchronous SRAM, 18 Mbit (512K x 36), 133 MHz clock, 6.5 ns access, 100-TQFP (14x20 mm), 0°C to 70°C, tray.","salesMarkdown":"The CY7C1381D-133AXC: For existing BOM lines, this part is sourced through independent distribution channels. ## 18 Mbit synchronous SRAM — 512K x 36 organization The CY7C1381D-133AXC is a 18 Mbit synchronous SRAM organized as 512K words by 36 bits. The 36-bit word width maps directly to a 32-bit data bus plus 4 parity or ECC bits — common in networking and telecom line-card buffer applications where parity coverage is needed without an external logic device. The 133 MHz clock frequency and 6.5 ns access time mean the part delivers one 36-bit word per clock cycle in pipelined read mode — a sustained throughput of 4.8 Gbit/s on the parallel bus. The 100-TQFP is a common pinout for mid-density synchronous SRAMs, which simplifies PCB layout reuse if a second-source part is needed. Supply range is 3.135 V to 3.6 V — a 3.3 V nominal rail with ±5 % margin.","metaTitle":"CY7C1381D-133AXC Infineon SRAM, 18Mbit, 133 MHz, 100-TQFP","metaDescription":"CY7C1381D-133AXC synchronous SRAM, 18 Mbit, 133 MHz, 6.5 ns access. Obsolete — sourced to order against RFQ through independent distribution.","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":"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":"Obsolete","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":"$16.8133","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9985f2d205eabade2691ac0b57a98611.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1381D-133AXC/alternatives.json"},"ai":{"faq":[{"question":"What is the memory organization of the CY7C1381D-133AXC?","answer":"The CY7C1381D-133AXC is organized as 512K words by 36 bits, totaling 18 Mbit of synchronous SRAM."},{"question":"What package does the CY7C1381D-133AXC use?","answer":"It comes in a 100-lead TQFP (14x20 mm body, 0.5 mm pitch), supplied in trays."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1381D-133AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1381D-133AXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:06:04.840Z","lastPublished":"2026-07-21T02:06:04.840Z","indexable":true}}