{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1329H-166AXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1329H-166AXC","canonicalUrl":"https://icboms.com/infineon/CY7C1329H-166AXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1329H-166AXC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C1329H-166AXC synchronous SRAM, 2Mbit (64K×32), 3.5 ns access, 166 MHz clock, parallel interface, 3.15–3.6 V, 100-LQFP tray, 0°C to 70°C.","salesMarkdown":"## 166 MHz synchronous SRAM for high-speed cache and buffer applications The Cypress CY7C1329H-166AXC is a 2Mbit synchronous SRAM organized as 64K words by 32 bits, with a 166 MHz clock and 3.5 ns access time. This part is designed for high-throughput data buffering, cache memory, and FIFO replacement in networking, telecom, and test equipment where the bus must run at full clock rate without wait states. The 100-LQFP (14x20 mm) surface-mount package fits standard fine-pitch footprints. ## 3.5 ns access time — timing closure at 166 MHz The 3.5 ns access time is the window from address assertion to valid data on the bus. At 166 MHz the clock period is about 6 ns, so a 3.5 ns access leaves roughly 2.5 ns for board trace delay, clock skew, and setup time at the controller. That is tight — expect to place the SRAM close to the memory controller and use matched-length traces. The synchronous pipeline (SDR) means data appears on the rising edge after the address is latched, which simplifies the interface compared to asynchronous SRAM but still demands careful signal-integrity design. Cypress (now part of Infineon) no longer manufactures this specific speed grade and package variant. This part is intended for controlled indoor environments — office equipment, lab instruments, telecom central-office racks, and similar. If the application requires -40°C to 85°C or 105°C, look for an industrial-temperature variant in the same Cypress synchronous SRAM family (check the base product number CY7C1329 suffix).","metaTitle":"Cypress CY7C1329H-166AXC 2Mbit Synchronous SRAM, 166 MHz","metaDescription":"Cypress CY7C1329H-166AXC 2Mbit synchronous SRAM, 64K×32, 3.5 ns access, 166 MHz clock, 100-LQFP, 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 - Synchronous, SDR","Access Time":"3.5 ns","Memory Size":"2Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","Clock Frequency":"166 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3.15V ~ 3.6V","Base Product Number":"CY7C1329","Memory Organization":"64K x 32","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"100-TQFP (14x20)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/32932654955469dd27344dc01a2c1362.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C1329H-166AXC obsolete?","answer":"Yes, the CY7C1329H-166AXC is marked obsolete. Cypress no longer produces this part."},{"question":"What is the replacement for CY7C1329H-166AXC?","answer":"No official replacement order code is listed. For a pin-compatible alternative, look for another Cypress synchronous SRAM with the same 64K×32 organization and 100-LQFP package, but verify the clock speed (166 MHz) and access time (3.5 ns) match the controller timing. Contact our sourcing desk for cross-reference assistance."},{"question":"Where to buy CY7C1329H-166AXC?","answer":"Submit an RFQ for current availability and pricing; we quote to order on a per-lot basis."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1329H-166AXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1329H-166AXC 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}}