{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C09159AV-9AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C09159AV-9AXC","canonicalUrl":"https://icboms.com/infineon/CY7C09159AV-9AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C09159AV-9AXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C09159AV-9AXC, 72Kbit (8Kx9) synchronous dual-port SRAM, 9 ns access time, 67 MHz clock, 3V–3.6V supply, parallel interface, 100-TQFP (14x14), 0°C to 70°C, Tray.","salesMarkdown":"The Cypress CY7C09159AV-9AXC is a 72Kbit synchronous dual-port SRAM organized as 8K x 9 bits. It provides two independent ports with separate address, data, and control lines, allowing simultaneous read/write access from two bus masters. The 9 ns access time and 67 MHz clock rate suit shared-memory applications like multiprocessor buffers, FIFO emulation, or mailbox registers in telecom and datacom equipment. The 100-pin TQFP package (14x14 mm) is a surface-mount footprint common in mid-density board designs. ## 9 ns access and 67 MHz — what they mean for bus timing In a synchronous dual-port, this sets the minimum read-cycle window for the slower port. The 67 MHz clock defines the maximum arbitration rate: each port can perform a read or write every 14.9 ns. A designer sizing the bus margin should budget for the sum of access time, trace delay, and setup time of the receiving device. The 9 ns rating leaves about 6 ns for board parasitics and logic at 67 MHz, which is workable on a well-laid-out four-layer PCB. ## 8K x 9 organization — why the extra bit The 9-bit width (8 data bits plus one parity or control bit) is a legacy telecom and networking convention. The ninth bit often carries a parity flag or a start-of-packet marker in HDLC-style controllers. If the design uses only 8-bit data, the ninth bit can be tied low or left unconnected, but the memory depth is fixed at 8K words. For a pure 8-bit application, a standard 8-bit-wide dual-port (e.g., 8K x 8) would waste no bits, but the 9-bit organization is a deliberate fit for designs already using the ninth line. Sourcing is through independent distribution and surplus channels. Buyers should verify date-code provenance and inspect for counterfeits — this part's age makes it a target for re-marked or salvaged stock.","metaTitle":"Cypress CY7C09159AV-9AXC 72Kbit Dual-Port SRAM, 9ns, 67MHz","metaDescription":"Cypress CY7C09159AV-9AXC 72Kbit (8Kx9) synchronous dual-port SRAM, 9ns access, 67MHz clock, 3.3V, 100-TQFP, 0°C to 70°C.","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, Synchronous","Access Time":"9 ns","Memory Size":"72Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","Clock Frequency":"67 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3V ~ 3.6V","Base Product Number":"CY7C09159","Memory Organization":"8K x 9","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"100-TQFP (14x14)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C09159AV-9AXC obsolete?","answer":"Yes, the CY7C09159AV-9AXC is listed as Obsolete. It is no longer manufactured by Cypress. No successor part is specified in the available records. Sourcing is through independent and surplus channels."},{"question":"What is the replacement for CY7C09159AV-9AXC?","answer":"No official replacement part is recorded for the CY7C09159AV-9AXC. For a pin-compatible alternative, review other Cypress synchronous dual-port SRAMs in the same 100-TQFP package and 3.3V supply range, such as the CY7C09159AV-9AC (same base part, different speed grade). Confirm timing and package compatibility against your design before substituting."},{"question":"Where can I buy CY7C09159AV-9AXC?","answer":"The CY7C09159AV-9AXC is available to order through independent distribution. Submit an RFQ for current availability and pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C09159AV-9AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C09159AV-9AXC 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}}