{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1352B-133AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1352B-133AC","canonicalUrl":"https://icboms.com/infineon/CY7C1352B-133AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1352B-133AC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1352B-133AC, Synchronous SRAM, 4.5Mbit (256K x 18), 133 MHz clock, 4.2 ns access, Parallel interface, 3.135V–3.465V supply, 0°C–70°C, 100-TQFP.","salesMarkdown":"## 133 MHz synchronous SRAM — what the clock and access time mean for your design The CY7C1352B-133AC is a Cypress 4.5 Mbit synchronous SRAM organized as 256K x 18 bits, clocked at 133 MHz with a 4.2 ns access time. The 133 MHz clock rate means the part can sustain back-to-back read or write transactions every cycle, with no dead cycles between accesses, as long as the pipeline is kept full. ## Package and footprint — 100-TQFP, surface-mount assembly The CY7C1352B-133AC comes in a 100-lead TQFP with a 14 mm x 20 mm body (100-TQFP). It is a surface-mount package, so the board footprint is a standard 0.5 mm pitch QFP land pattern. The package is not a fine-pitch BGA, so visual inspection and rework are straightforward with a hot-air station. If you have an active BOM that calls out this exact order code, you cannot rely on factory lead times — every unit must be sourced from existing inventory held by distributors or brokers. The 256K x 18 synchronous SRAM function is still served by current-production parts from Cypress (now Infineon) and other vendors, but none are pin-compatible drop-in replacements without a board spin. For a production run, the safest path is to qualify a currently-manufactured synchronous SRAM in the same package and pinout family, then respin the board if needed.","metaTitle":"Cypress CY7C1352B-133AC 4.5Mbit Synchronous SRAM, 133 MHz","metaDescription":"Cypress CY7C1352B-133AC 4.5Mbit synchronous SRAM, 133 MHz clock, 4.2 ns access, 256K x 18 organization, 100-TQFP.","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":"4.2 ns","Memory Size":"4.5Mbit","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 ~ 3.465V","Base Product Number":"CY7C1352","Memory Organization":"256K x 18","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"100-TQFP (14x20)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/284cb95364f477a308b6d7ea1959ebe2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1352B-133AC/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1352B-133AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1352B-133AC 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}}