{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C4831-10AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C4831-10AC","canonicalUrl":"https://icboms.com/infineon/CY7C4831-10AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C4831-10AC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C4831-10AC synchronous FIFO memory, 100 MHz data rate, 8 ns access time, 36K (2K x 9 x 2) depth, 4.5–5.5 V supply, 0°C to 70°C, 64-LQFP package.","salesMarkdown":"## 100 MHz synchronous FIFO — what the 8 ns access buys you The Cypress CY7C4831-10AC is a synchronous FIFO memory from the CY7C series, organized as 36K (2K x 9 x 2) with a 100 MHz data rate and 8 ns access time. The part supports depth and width expansion, programmable flags, and bidirectional bus direction, but does not include retransmit capability or FWFT support. It comes in a 64-LQFP package for surface-mount assembly. ## Obsolete — plan your last-time-buy or find a replacement The CY7C4831-10AC is listed as obsolete per the lifecycle record. This means Cypress (now Infineon) has discontinued production, and no further factory orders are accepted. If you are maintaining a legacy board, secure your remaining lifetime requirement now — once the surplus channel dries up, this part becomes hard to find. If your application sees temperature swings outside this band, you need a different part. ## Package and footprint — 64-LQFP / 64-TQFP (14x14 mm) The CY7C4831-10AC is supplied in a 64-LQFP package (supplier device package 64-TQFP, 14x14 mm body). This is a standard fine-pitch surface-mount footprint. If you are evaluating a replacement, the package compatibility is the first check — many synchronous FIFOs from Cypress and others use similar 64-pin TQFP outlines, but pin assignments vary. Verify the footprint against your PCB layout.","metaTitle":"Cypress CY7C4831-10AC Synchronous FIFO, 100 MHz, 8 ns, 36K","metaDescription":"Cypress CY7C4831-10AC synchronous FIFO: 100 MHz data rate, 8 ns access, 36K (2K x 9 x 2), 4.5–5.5 V, 0°C–70°C, 64-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":"CY7C","Package":"Bag","Function":"Synchronous","Data Rate":"100MHz","Access Time":"8ns","Memory Size":"36K (2K x 9 x 2)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"64-LQFP","Product Status":"Obsolete","Bus Directional":"Bi-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C4831","Operating Temperature":"0°C ~ 70°C","Retransmit Capability":"No","Current - Supply (Max)":"60mA","Supplier Device Package":"64-TQFP (14x14)","Programmable Flags Support":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.6000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/706ac38d842a765e55660ba73e17a223.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the CY7C4831-10AC?","answer":"The CY7C4831-10AC is obsolete and no longer in factory production. Submit an RFQ for current availability and pricing — availability and price are confirmed at quote time."},{"question":"Is the CY7C4831-10AC obsolete?","answer":"Yes, the CY7C4831-10AC is listed as obsolete. Cypress has discontinued this part, and no further factory orders are accepted. Plan your last-time-buy or identify a replacement for new designs."},{"question":"What is the replacement for the CY7C4831-10AC?","answer":"A pin-compatible drop-in is not guaranteed. For legacy support, source the CY7C4831-10AC through surplus channels. For new designs, evaluate other synchronous FIFOs in the CY7C family or from other vendors, but verify pinout and timing compatibility against your board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C4831-10AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C4831-10AC 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}}