{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C146-55JXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C146-55JXC","canonicalUrl":"https://icboms.com/infineon/CY7C146-55JXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C146-55JXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C146-55JXC, SRAM - Dual Port, Asynchronous, 16Kbit (2K x 8), 55 ns, Parallel, 4.5V ~ 5.5V, 0°C ~ 70°C, 52-PLCC (19.13x19.13), Tube.","salesMarkdown":"## 16Kbit dual-port asynchronous SRAM in a PLCC-52 footprint The Infineon CY7C146-55JXC is a 16Kbit dual-port asynchronous SRAM organized as 2K x 8 bits, housed in a 52-lead PLCC package (J-lead, surface-mount). It provides two independent ports with separate address, data, and control lines, allowing simultaneous read or write access from two bus masters. The 55 ns access time and matched write-cycle time define the bus timing for systems that share memory between processors, DSPs, or controllers without arbitration logic overhead. ## 55 ns access time and dual-port arbitration Dual-port architecture means two independent buses can access any memory location simultaneously — the internal arbitration handles same-address contention via the BUSY flag. This part is used in shared-memory designs like multiprocessor mailboxes, video frame buffers, or network packet buffers where separate controllers need a common scratchpad. Infineon (formerly Cypress) lists the CY7C146-55JXC as obsolete. Given the obsolete status, verify date-code consistency and lot traceability when procuring from non-franchised sources; the PLCC package and J-lead form factor are distinctive and the laser etch should match Infineon/Cypress marking standards for that fab period.","metaTitle":"Infineon CY7C146-55JXC 16Kbit Dual-Port SRAM, 55 ns, PLCC-52","metaDescription":"Infineon CY7C146-55JXC 16Kbit (2K x 8) dual-port asynchronous SRAM with 55 ns access time, 4.5V-5.5V supply, 0°C-70°C. Obsolete. Available to order.","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":"16Kbit","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":"CY7C146","Memory Organization":"2K 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/90caa3e64aa3f42e05e64c643a800680.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for CY7C146-55JXC?","answer":"No official replacement part number is provided in the lifecycle record. For a pin-compatible alternative within the Cypress/Infineon dual-port SRAM family, consider the CY7C144 series (which offers similar 2K x 8 organization and 55 ns speed in a PLCC-52 package) — however, verify the exact pinout and control-logic compatibility against your board's schematic before substitution."},{"question":"Can I use CY7C146-55JXC in a new design?","answer":"Not recommended. The part is obsolete, meaning no new production runs are planned. A new design would face supply risk and eventual unavailability. Look at current dual-port SRAMs from Infineon or Renesas in the same density and package class, or consider a single-port SRAM with external arbitration if dual-port is not strictly required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C146-55JXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C146-55JXC 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}}