{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1386C-167AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1386C-167AC","canonicalUrl":"https://icboms.com/infineon/CY7C1386C-167AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1386C-167AC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon/Cypress CY7C1386C-167AC, 18Mbit synchronous SRAM, 167 MHz clock, 3.4 ns access, 512K x 36-bit organization, 3.135-3.6V supply, 100-LQFP, 0 to 70 °C.","salesMarkdown":"The 36-bit word width suits processors or ASICs with 36-bit data buses or parity/ECC applications. This part is listed as Obsolete. If you have a board that uses the CY7C1386C-167AC, you are looking at surplus or broker-channel inventory to fill a BOM line. For a production run, qualifying a second source or migrating to a newer synchronous SRAM family (like Cypress's own 18 Mbit NoBL or QDR parts) is the long-term fix. The 3.4 ns access time is measured from the clock edge to data valid, which at 167 MHz (6 ns cycle) leaves about 2.6 ns for board trace delay, input capacitance, and setup time at the receiver. That is a tight window—signal-integrity simulation on the address/control bus and matched-length routing on the data lines are not optional. The 36-bit parallel interface means 36 data lines plus address and control all need to meet setup-and-hold relative to the same clock edge. If you are replacing a failed part on an existing board, the original layout already accounts for this; if you are designing it in, budget for controlled-impedance traces and a clean clock tree. ## Package and temperature grade—commercial environment only The CY7C1386C-167AC comes in a 100-LQFP package (supplier device package 100-TQFP, 14x20 mm body). That is a fine-pitch (0.5 mm or 0.65 mm typical for 100-pin TQFPs) surface-mount package, reworkable with hot air but requiring careful alignment and stencil design for the PCB assembly. No industrial or automotive temperature rating here; if your application sees -40°C or +85°C ambient, this part will not meet the spec.","metaTitle":"CY7C1386C-167AC 18Mbit Sync SRAM, 167 MHz, 3.4 ns Access","metaDescription":"Infineon/Cypress CY7C1386C-167AC 18Mbit synchronous SRAM, 167 MHz clock, 3.4 ns access, 512K x 36, 3.135-3.6V, 100-LQFP, 0-70°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":"Bag","Technology":"SRAM - Synchronous, SDR","Access Time":"3.4 ns","Memory Size":"18Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","Clock Frequency":"167 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3.135V ~ 3.6V","Base Product Number":"CY7C1386","Memory Organization":"512K x 36","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/6e2d4d023c69a996ec532b31e356e1b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C1386C-167AC obsolete?","answer":"Yes, the CY7C1386C-167AC is listed as Obsolete. Cypress/Infineon has discontinued production, and no last-time-buy window remains. Supply is limited to surplus and broker-channel inventory."},{"question":"What is a direct replacement for CY7C1386C-167AC?","answer":"No official direct replacement (pin-compatible successor) is recorded in the lifecycle data for the CY7C1386C-167AC. For a production fix, consider qualifying a newer synchronous SRAM from Cypress's 18 Mbit portfolio (e.g., NoBL or QDR families) that matches the 512K x 36 organization and 100-LQFP footprint, but verify pinout and timing compatibility against your board's layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1386C-167AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1386C-167AC 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}}