{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C131-55JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C131-55JXC","canonicalUrl":"https://icboms.com/infineon/CY7C131-55JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C131-55JXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C131-55JXC, 8Kbit (1K x 8) dual-port asynchronous SRAM, 55 ns access time, 4.5V–5.5V supply, parallel interface, 52-PLCC (19.13x19.13 mm), 0°C–70°C, Tube.","salesMarkdown":"## 8Kbit dual-port asynchronous SRAM — shared-memory workhorse The Infineon CY7C131-55JXC is an 8Kbit (organized as 1K x 8) dual-port asynchronous SRAM. The 55 ns access time sets the bus timing budget. ## 55 ns access — timing closure for the shared bus The 55 ns access time and 55 ns write cycle time set the bus timing budget. This means Infineon no longer produces it, and no last-time-buy window remains. The only supply channel is the surplus and independent distribution market, where sealed factory reels and tube stock from end-of-life buyouts still circulate. No direct factory replacement is listed; the closest functional alternative would be a pin-compatible dual-port SRAM (e.g., CY7C131-55JI, which shares the same 52-PLCC footprint and 55 ns timing but may differ in lead finish or temperature range — confirm compatibility before substituting). ## 52-PLCC package — footprint and rework notes The 52-lead PLCC with J-leads is a legacy surface-mount package. The supplier device package dimension is 19.13 x 19.13 mm, which sets the land pattern and keep-out zone on the PCB.","metaTitle":"Infineon CY7C131-55JXC 8Kbit Dual-Port Async SRAM, 55 ns","metaDescription":"Infineon CY7C131-55JXC 8Kbit dual-port asynchronous SRAM, 55 ns access time, 4.5V–5.5V, 52-PLCC, 0°C–70°C. Request quote.","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":"Tube","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"55 ns","Memory Size":"8Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"52-LCC (J-Lead)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C131","Memory Organization":"1K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"52-PLCC (19.13x19.13)","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4525bc76605bfaec121d3b7d6a8f362d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pin-compatible replacement for CY7C131-55JXC?","answer":"No direct pin-compatible replacement is listed by the manufacturer. The CY7C131-55JI shares the same 52-PLCC package and 55 ns timing, but the lead finish and temperature range may differ — verify compatibility with your specific design before substituting."},{"question":"What is CY7C131-55JXC's listed technology?","answer":"It is a dual-port, asynchronous SRAM — volatile memory organized as 1K x 8 bits, with a parallel interface and 55 ns access time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C131-55JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C131-55JXC 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}}