{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C464A-10JC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C464A-10JC","canonicalUrl":"https://icboms.com/infineon/CY7C464A-10JC","factsUrl":"https://icboms.com/api/mcp/products/CY7C464A-10JC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C464A-10JC asynchronous FIFO, 288K (32K x 9), 10 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 32-PLCC (J-Lead), 0°C–70°C.","salesMarkdown":"## Async FIFO with 9-bit width — 10 ns access defines the bus window The Cypress CY7C464A-10JC is a 288K (32K x 9) asynchronous FIFO memory from the CY7C series, built for unidirectional data buffering where the 9th bit carries a parity or control flag alongside the 8-bit data word. Its 10 ns access time sets the read-cycle window: a system clocked at 50 MHz gets one full cycle for address decode, data access, and hold — tight but workable with a 5 V TTL bus. The 32-PLCC package with J-leads is a legacy surface-mount footprint still found on telecom line cards and industrial controller boards that need a simple, no-register depth or width expansion. ## Obsolete — sourcing through the surplus channel That means every unit needs a provenance check — date-code consistency, marking integrity, and lot traceability back to an authorized Cypress shipment. A 32-PLCC package from the 1990s–2000s production window is a common target for re-marked or relabeled stock, so physical authentication (decapsulation, X-ray) is the right screen. ## Pin-compatible drop-in? Know the footprint before you substitute The 32-PLCC (J-Lead) footprint is shared across several Cypress async FIFO densities from the same era — parts like the CY7C42x and CY7C44x series often use the same mechanical outline. But the 9-bit width and 10 ns speed grade narrow the compatible set. A direct replacement must match the JEDEC-standard 32-PLCC pinout, the 4.5 V–5.5 V supply, and the retransmit capability.","metaTitle":"CY7C464A-10JC Async FIFO, 32K x 9, 10 ns Access","metaDescription":"Cypress CY7C464A-10JC asynchronous FIFO: 288K (32K x 9), 10 ns access, 50 MHz, 5V, 32-PLCC. Get a 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":"CY7C","Package":"Tube","Function":"Asynchronous","Data Rate":"50MHz","Access Time":"10ns","Memory Size":"288K (32K 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":"7C464","Operating Temperature":"0°C~70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"60mA","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/3effe08767d08d2f10449a1ee0a49318.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a replacement for CY7C464A-10JC?","answer":"A functionally equivalent part would need to match the 32K x 9 organization, 10 ns access time, 5 V supply, retransmit capability, and 32-PLCC footprint. Without a Cypress cross-reference, the buyer must verify pin-compatibility from datasheet pin tables."},{"question":"What is the access time of CY7C464A-10JC?","answer":"The access time is 10 ns. This is the time from address assertion to valid data on the output bus — it sets the minimum read-cycle window for the system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C464A-10JC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C464A-10JC 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}}