{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C433-20JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C433-20JXC","canonicalUrl":"https://icboms.com/infineon/CY7C433-20JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C433-20JXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C433-20JXC, Series CY7C, asynchronous FIFO memory, 36K (4K x 9), 20 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 0°C–70°C, 32-PLCC (J-Lead) package, Tube.","salesMarkdown":"## Asynchronous FIFO for 5 V bus buffering The CY7C433-20JXC: Asynchronous FIFO, 36 Kbit (4 K x 9), unidirectional, 20 ns access, 50 MHz data rate. Supports depth and width expansion; includes retransmit capability. Maximum supply current is 55 mA. ## 20 ns access — what it means for bus timing 20 ns access time; 50 MHz data rate. ## Retransmit and expansion — what the flags tell you The CY7C433-20JXC includes a retransmit pin that resets the internal read pointer to the first unread word without clearing the FIFO contents. This is useful in protocol applications where a receiver needs to re-read a corrupted packet after a CRC error. The part does not support programmable flags or FWFT (First-Word Fall-Through) — the empty and full flags are hard-wired to the internal pointer logic. For designs that need flag thresholds, look at the CY7C42x series with programmable almost-empty/almost-full outputs.","metaTitle":"Cypress CY7C433-20JXC FIFO, 36K Async, 20ns, 50MHz","metaDescription":"Cypress CY7C433-20JXC asynchronous FIFO: 36K (4K x 9), 20ns access, 50MHz data rate, 32-PLCC, 0-70°C. Obsolete — sourced to order against RFQ.","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":"Tube","Function":"Asynchronous","Data Rate":"50MHz","Access Time":"20ns","Memory Size":"36K (4K x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"32-LCC (J-Lead)","Product Status":"Obsolete","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Base Product Number":"7C433","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"55mA","Supplier Device Package":"32-PLCC (11.43x13.97)","Programmable Flags Support":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c6f17e93a3e6656c3e996644151f8e4d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C433-20JXC and how do I get a price?","answer":"We source the CY7C433-20JXC through independent distribution channels. Submit an RFQ through this listing for a current price and availability quote — pricing and stock are confirmed at quote time, not listed here."},{"question":"What is the closest pin-compatible alternative to CY7C433-20JXC?","answer":"There is no official Cypress successor for this exact 32-PLCC variant. The functionally identical CY7C433-20AXC uses a 32-TQFP package with a different footprint — verify PCB compatibility before substituting."},{"question":"What is CY7C433-20JXC's memory organization?","answer":"The CY7C433-20JXC is organized as 4,096 words by 9 bits (36 Kbit total), with a 20 ns access time and 50 MHz maximum data rate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C433-20JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C433-20JXC 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}}