{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1355B-117AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1355B-117AC","canonicalUrl":"https://icboms.com/infineon/CY7C1355B-117AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1355B-117AC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon (Cypress) CY7C1355B-117AC, 9 Mbit synchronous SDR SRAM, 117 MHz clock, 7 ns access time, 256K x 36 parallel organization, 3.135–3.6 V supply, 100-LQFP/100-TQFP package, 0°C to 70°C operating temperature.","salesMarkdown":"## What this synchronous SRAM does in a system The Infineon CY7C1355B-117AC is a 9 Mbit synchronous single-data-rate (SDR) SRAM organized as 256K words by 36 bits. It clocks at 117 MHz and delivers a 7 ns access time from clock edge to data valid. ## 117 MHz clock and 7 ns access — what they mean for bus timing The 117 MHz clock sets the maximum rate at which the SRAM can accept new addresses. With a 7 ns access time, the data appears on the outputs within one clock cycle at full speed. That means Infineon (formerly Cypress) no longer produces this exact order code, and there is no official last-time-buy window open. For a production BOM, this part is only available through the surplus and independent distribution channel — new-old-stock or pulled inventory. There is no pin-compatible direct replacement listed in the official records, so any substitution requires a board respin or a validated second-source qualification. If you are supporting an existing design that already uses this SRAM, the practical path is to source from independent stock while it lasts, or plan a migration to a current-generation synchronous SRAM or QDR/DDR variant in a similar package. The part comes in a 100-pin LQFP with body dimensions 14x20 mm. It is a surface-mount package.","metaTitle":"Infineon CY7C1355B-117AC 9Mbit Sync SRAM, 117 MHz, 7 ns","metaDescription":"CY7C1355B-117AC 9Mbit synchronous SDR SRAM by Infineon (Cypress). 117 MHz clock, 7 ns access time, 256K x 36, 100-LQFP.","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":"Bag","Technology":"SRAM - Synchronous, SDR","Access Time":"7 ns","Memory Size":"9Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","Clock Frequency":"117 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3.135V ~ 3.6V","Base Product Number":"CY7C1355","Memory Organization":"256K 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/83297c75016f31cf91d38f80fc90b9b9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C1355B-117AC obsolete or still active?","answer":"The CY7C1355B-117AC is obsolete. Infineon (Cypress) no longer manufactures this exact order code, so it is only available through surplus and independent distribution channels."},{"question":"What is the replacement for CY7C1355B-117AC?","answer":"There is no official pin-compatible replacement listed for the CY7C1355B-117AC. Any substitution would require a board redesign or a validated second-source qualification against a current-generation synchronous SRAM with similar timing and package."},{"question":"What is the operating temperature of CY7C1355B-117AC?","answer":"It is not rated for industrial or automotive environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1355B-117AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1355B-117AC 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}}