{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1355C-133AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1355C-133AXC","canonicalUrl":"https://icboms.com/infineon/CY7C1355C-133AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1355C-133AXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress NoBL™ CY7C1355C-133AXC, 9Mbit synchronous SRAM, 133 MHz clock frequency, 6.5 ns access time, 256K x 36 organization, 3.135V–3.6V supply, 100-TQFP (14x20), 0°C to 70°C.","salesMarkdown":"## 9 Mbit NoBL SRAM at 133 MHz — the bus-fit call The Cypress CY7C1355C-133AXC is a 9 Mbit synchronous SRAM from the NoBL™ family, organized as 256K x 36, clocked at 133 MHz with a 6.5 ns access time. The NoBL pipeline eliminates dead cycles between reads and writes, which matters when back-to-back transactions eat into your bus margin. This part is built for networking gear, telecom line cards, and high-end test equipment where deterministic memory latency at speed is non-negotiable. ## 6.5 ns access — timing closure for a 133 MHz bus The 6.5 ns access time is the window between clock edge and valid data on the outputs. At 133 MHz the clock period is about 7.5 ns, so that 6.5 ns leaves roughly 1 ns of setup margin before the next edge — tight but workable if your board's trace delay and clock skew are controlled. If you're running a 133 MHz memory bus, this part fits; if you need margin for a long flight-time backplane, a faster-access sibling (sub-6 ns) would be the safer call. That means Cypress has stopped taking regular production orders, and the window for final purchases is closing. If you have an active design using this SRAM, now is the time to secure your lifetime buy or qualify a pin-compatible replacement. No official successor part is listed in the Cypress documentation, so a direct drop-in is not guaranteed. ## 100-TQFP — footprint and rework notes It's a surface-mount, fine-pitch QFP — standard for synchronous SRAMs in this density tier.","metaTitle":"Cypress CY7C1355C-133AXC 9Mbit NoBL SRAM, 133 MHz, 6.5 ns","metaDescription":"Cypress CY7C1355C-133AXC 9Mbit synchronous SRAM, 133 MHz clock, 6.5 ns access, 256K x 36, 100-TQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"NoBL™","Package":"Tray","Technology":"SRAM - Synchronous, SDR","Access Time":"6.5 ns","Memory Size":"9Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Last Time Buy","Clock Frequency":"133 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":"$13.8400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2777ab46352ffe7e03a8e61ba0b8eaa5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1355C-133AXC/alternatives.json"},"ai":{"faq":[{"question":"What is a direct replacement for CY7C1355C-133AXC?","answer":"No official direct replacement is listed in the Cypress documentation for this part. A pin-compatible alternative within the NoBL family may exist, but it would need to match the 256K x 36 organization, 133 MHz clock, and 100-TQFP footprint. Contact us with your volume and timeline, and we can cross-reference available options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1355C-133AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1355C-133AXC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}