{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C028AV-25AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C028AV-25AXC","canonicalUrl":"https://icboms.com/infineon/CY7C028AV-25AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C028AV-25AXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C028AV-25AXC, 1Mbit (64K x 16) dual-port asynchronous SRAM, 25 ns access time, 3V–3.6V supply, 100-TQFP (14x14), 0°C–70°C commercial temperature.","salesMarkdown":"The Infineon CY7C028AV-25AXC is a 1 Mbit dual-port asynchronous SRAM organized as 64K x 16 bits. It gives two independent processors or controllers simultaneous access to a common memory array through separate left and right port buses, each with its own address, data, and control lines. This part is built for shared-buffer applications like baseband processors, video frame buffers, or multiprocessor mailboxes where the two sides exchange data without a serial bottleneck. ## 25 ns access — timing margin in a dual-port system In a system running a 40 MHz bus clock (25 ns period), that leaves zero margin for address decoding and PCB trace delay — the bus must be designed for zero-wait-state operation at that speed. If the other side of the dual-port is a slower peripheral, the 25 ns spec still sets the minimum cycle time for back-to-back reads. For designs that need headroom, the -20AXC speed grade (20 ns) exists, but the -25AXC is the more common, cost-optimized variant for 33 MHz or slower buses. New-stock procurement now runs through independent distribution and surplus channels. No direct factory replacement has been announced for this exact speed grade; the CY7C028 family shares the same footprint and pinout across speed bins, so a -20AXC or -25AXI variant may serve as a drop-in if the system can tolerate the timing or temperature difference, but those are also end-of-life. For a new design, consider a current-generation dual-port SRAM from Infineon or a serial-memory alternative with an FPGA bridge. ## Package and footprint — 100-TQFP","metaTitle":"CY7C028AV-25AXC Infineon 1Mbit Dual-Port SRAM, 25 ns","metaDescription":"Infineon CY7C028AV-25AXC 1Mbit (64K x 16) dual-port asynchronous SRAM in 100-TQFP. 25 ns access time, 3V–3.6V supply. 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":"Tray","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"25 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"CY7C028","Memory Organization":"64K x 16","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"100-TQFP (14x14)","Write Cycle Time - Word, Page":"25ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C028AV-25AXC obsolete?","answer":"Yes, Infineon lists the CY7C028AV-25AXC as obsolete. No factory last-time-buy is active. Procurement is through surplus and broker channels."},{"question":"What is the exact replacement for CY7C028AV-25AXC?","answer":"No direct factory replacement has been announced for this speed grade. For new designs, consider a current-generation dual-port SRAM or a serial-memory alternative with an FPGA bridge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C028AV-25AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C028AV-25AXC 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}}