{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C027-20AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C027-20AC","canonicalUrl":"https://icboms.com/infineon/CY7C027-20AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C027-20AC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C027-20AC, 512Kbit (32K x 16) asynchronous dual-port SRAM, 20 ns access time, parallel interface, 5V supply, 0°C to 70°C, 100-TQFP (14x14), tray.","salesMarkdown":"The Infineon CY7C027-20AC is a 512Kbit asynchronous dual-port SRAM organized as 32K words by 16 bits, in a 100-TQFP surface-mount package. It provides two independent ports with separate address, data, and control lines, allowing two bus masters (e.g., a DSP and a microcontroller, or two processors) to access the same memory array without external arbitration logic. The 20 ns access time on each port supports back-to-back read/write cycles at bus speeds up to 50 MHz, and the 5V supply rail is common in legacy telecom and industrial control backplanes. ## 20 ns access — timing margin for shared buses In a dual-port design, both ports run at this speed, so the bus-turnaround overhead is symmetric. For a system clocked at 40 MHz (25 ns period), the 20 ns access leaves 5 ns of margin for PCB trace delay and setup time on the host — enough for a single backplane slot but tight for a multi-drop bus. If your controller runs at 50 MHz or faster, the 20 ns window becomes the critical path; verify hold times against the port's data-sheet timing parameters. Infineon (formerly Cypress) no longer manufactures this part; no factory last-time-buy window remains open. Sourcing is limited to independent-distribution surplus and broker inventory. No official successor part is recorded; the CY7C027 family shares a common footprint, so a faster speed grade (e.g., CY7C027-25AC) may be a drop-in candidate if the timing budget allows.","metaTitle":"Infineon CY7C027-20AC 512Kbit Dual-Port SRAM, 20 ns","metaDescription":"Infineon CY7C027-20AC 512Kbit (32K x 16) asynchronous dual-port SRAM, 20 ns access, 100-TQFP.","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":"20 ns","Memory Size":"512Kbit","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":"5V","Base Product Number":"CY7C027","Memory Organization":"32K x 16","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"100-TQFP (14x14)","Write Cycle Time - Word, Page":"20ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/93e43286e4da7130ed740d59d8cf1255.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C027-20AC obsolete?","answer":"Yes, the CY7C027-20AC is listed as Obsolete. Infineon no longer produces it, and no factory last-time-buy is available. Supply is limited to surplus and broker inventory."},{"question":"Can CY7C027-20AC be used as a drop-in replacement for CY7C027-25AC?","answer":"Yes, the CY7C027-20AC is a faster speed grade (20 ns vs 25 ns) and shares the same 100-TQFP package, pinout, and 5V supply. It can replace a CY7C027-25AC in the same socket, provided the system timing can tolerate the faster access — no board changes needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C027-20AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C027-20AC 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}}