{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT45DQ321-MHF-Y","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"AT45DQ321-MHF-Y","canonicalUrl":"https://icboms.com/renesas/AT45DQ321-MHF-Y","factsUrl":"https://icboms.com/api/mcp/products/AT45DQ321-MHF-Y","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics AT45DQ321-MHF-Y, DataFlash SPI flash, 32 Mbit, 104 MHz, 2.3-3.6 V, -40 to 85 °C, 8-UDFN Exposed Pad, Tray.","salesMarkdown":"## 32 Mbit SPI flash at 104 MHz — read throughput for code shadowing The AT45DQ321-MHF-Y is a 32 Mbit DataFlash device from Renesas, organized as 528 bytes per page across 8192 pages. The SPI interface runs at 104 MHz clock frequency, delivering a raw read throughput that shadows firmware or stores data-log frames without stalling the host controller. Housed in an 8-UDFN Exposed Pad package (5 mm x 6 mm body), the centre paddle conducts heat to the PCB ground plane. ## Write and erase timing — firmware update budget Page write completes in 8 µs typical, and a full page erase takes 4 ms. For a firmware update spanning 100 pages, the erase phase dominates at ~400 ms; the write phase adds under 1 ms. Budget the erase time into the update window so the host watchdog does not expire mid-write. The 528-byte page size aligns with common data-logging sector boundaries — each page holds one complete sensor readout plus a timestamp header without crossing a page boundary. ## Active lifecycle and compliance status ROHS3 compliant, so it meets the current exemption-free RoHS directive without requiring a transition plan.","metaTitle":"AT45DQ321-MHF-Y Renesas 32Mbit SPI Flash, 104MHz, 8-UDFN","metaDescription":"Renesas AT45DQ321-MHF-Y 32Mbit SPI flash, 104MHz clock, 2.3-3.6V supply, -40 to 85°C, 8-UDFN (5x6). Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tray","Technology":"FLASH","Memory Size":"32Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"8-UDFN Exposed Pad","Clock Frequency":"104 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"2.3V ~ 3.6V","Memory Organization":"528 Bytes x 8192 pages","Operating Temperature":"-40°C ~ 85°C (TC)","Supplier Device Package":"8-UDFN (5x6)","Write Cycle Time - Word, Page":"8µs, 4ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.57000","currency":"USD"},{"qty":10,"price":"$4.14400","currency":"USD"},{"qty":25,"price":"$4.05400","currency":"USD"},{"qty":40,"price":"$4.03200","currency":"USD"},{"qty":80,"price":"$3.61525","currency":"USD"},{"qty":230,"price":"$3.60209","currency":"USD"},{"qty":570,"price":"$3.47047","currency":"USD"},{"qty":1140,"price":"$3.29935","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b9a2e898f67ec8c18358b8b8dfd321e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for AT45DQ321-MHF-Y?","answer":"Submit an RFQ for your target quantity. No stock-holding or lead-time figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/AT45DQ321-MHF-Y","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/AT45DQ321-MHF-Y when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}