{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"71P74604S250BQ","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"71P74604S250BQ","canonicalUrl":"https://icboms.com/renesas/71P74604S250BQ","factsUrl":"https://icboms.com/api/mcp/products/71P74604S250BQ","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics 71P74604S250BQ QDR II synchronous SRAM, 18 Mbit (512K x 36), 250 MHz clock, 8.4 ns access time, 1.7-1.9 V, 165-CABGA (13x15 mm), Bulk.","salesMarkdown":"## QDR II SRAM — 18 Mbit at 250 MHz The 71P74604S250BQ is a QDR II (Quad Data Rate) synchronous SRAM from Renesas, organized as 512K x 36 bits for a total of 18 Mbit. It clocks at 250 MHz, delivering a peak bandwidth of 2.25 GB/s on a 36-bit parallel bus — the QDR architecture transfers data on both clock edges, doubling throughput per pin vs standard synchronous SRAM. Access time is 8.4 ns, which sets the window from address latch to valid data out. ## Package and board-fit — 165-CABGA Housed in a 165-ball CABGA (13x15 mm body), the 71P74604S250BQ uses a 1.0 mm ball pitch. The 165-TBGA designation is the same package — TBGA and CABGA are interchangeable here. Supplied in Bulk (trays or tubes), not tape-and-reel — factor this into the pick-and-place feeder setup. The package is RoHS non-compliant, so it is a legacy-alloy (tin-lead) part. For RoHS-exempt or military/aerospace BOMs this is acceptable; for lead-free reflow profiles the solder ball composition may not wet properly at standard lead-free peak temperatures. ## Temperature grade and operating range This limits deployment to indoor, temperature-controlled environments — telecom central offices, data-center line cards, or lab instrumentation. Not suitable for industrial (-40°C to +85°C) or automotive under-hood use without additional thermal management.","metaTitle":"Renesas 71P74604S250BQ QDR II SRAM, 18Mbit, 250 MHz","metaDescription":"Renesas 71P74604S250BQ QDR II synchronous SRAM, 18 Mbit (512K x 36), 250 MHz clock, 8.4 ns access. Active production. RoHS non-compliant. 165-CABGA (13x15 mm).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Technology":"SRAM - Synchronous, QDR II","Access Time":"8.4 ns","Memory Size":"18Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"165-TBGA","Clock Frequency":"250 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Memory Organization":"512K x 36","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"165-CABGA (13x15)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.68","priceTiers":[{"qty":45,"price":"$6.68000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5765eec36348fa7ef7fdb6e03410bd65.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/71P74604S250BQ/alternatives.json"},"ai":{"faq":[{"question":"What is the memory organization of 71P74604S250BQ?","answer":"The 71P74604S250BQ is organized as 512K words by 36 bits (512K x 36), giving 18 Mbit total. The x36 bus width is wider than the common x18 or x9 QDR parts — useful for 36-bit data paths or ECC-protected words where the extra bits carry the check code."},{"question":"Is 71P74604S250BQ RoHS compliant?","answer":"No — the RoHS status is marked as non-compliant. This is a tin-lead (eutectic) BGA part. It is acceptable for RoHS-exempt applications (military, aerospace, medical implant) or legacy BOMs that still run tin-lead reflow. For lead-free assembly, the solder ball metallurgy may not reflow correctly at typical lead-free peak temperatures (245-260°C)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/71P74604S250BQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/71P74604S250BQ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}