{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT45DB021E-SSHN2B-T","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"AT45DB021E-SSHN2B-T","canonicalUrl":"https://icboms.com/renesas/AT45DB021E-SSHN2B-T","factsUrl":"https://icboms.com/api/mcp/products/AT45DB021E-SSHN2B-T","rawCanonicalId":null},"summary":{"shortDescription":"Adesto / Dialog AT45DB021E-SSHN2B-T, 2 Mbit SPI Serial Flash, 70 MHz clock, 1.65V–3.6V supply, 8-SOIC, -40°C to +85°C, Tape & Reel.","salesMarkdown":"## 2 Mbit SPI Flash in an 8-SOIC — what this part is The AT45DB021E-SSHN2B-T is a 2 Mbit serial flash memory that communicates over an SPI bus at up to 70 MHz. It is organized as 256 bytes per page across 1024 pages. ## Supply voltage and temperature — why they matter for your BOM The supply range is 1.65 V to 3.6 V. The operating temperature range is -40°C to 85°C. ## Write cycle timing — planning the firmware update strategy Page writes complete in 3 ms typical, and byte/word writes take 8 µs. That is fast enough for over-the-air update staging: you can buffer a 256-byte sector in SRAM and commit it in a few milliseconds. If your application does frequent small writes, the 8 µs word write keeps the bus transaction short, reducing the chance of a watchdog timeout. ## Lifecycle and sourcing reality The AT45DB021E-SSHN2B-T carries an Active product status with ROHS3 compliance. The sibling AT45DB021E-SSHN-T shares the same 2 Mbit frame size, 70 MHz SPI interface, and 8-SOIC package.","metaTitle":"AT45DB021E-SSHN2B-T 2 Mbit SPI Flash, 70 MHz, 8-SOIC","metaDescription":"AT45DB021E-SSHN2B-T 2 Mbit SPI Flash, 70 MHz clock, 1.65V–3.6V supply, -40°C to 85°C, 8-SOIC. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"FLASH","Memory Size":"2Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"70 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"1.65V ~ 3.6V","Memory Organization":"256 Bytes x 1024 pages","Operating Temperature":"-40°C ~ 85°C (TC)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"8µs, 3ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.29000","currency":"USD"},{"qty":10,"price":"$1.17400","currency":"USD"},{"qty":25,"price":"$1.14200","currency":"USD"},{"qty":50,"price":"$1.13600","currency":"USD"},{"qty":100,"price":"$1.01550","currency":"USD"},{"qty":250,"price":"$1.01252","currency":"USD"},{"qty":500,"price":"$0.99724","currency":"USD"},{"qty":1000,"price":"$0.95491","currency":"USD"},{"qty":4000,"price":"$0.89494","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/23b9995ddf748154118445bef37dec52.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the memory size and interface of AT45DB021E-SSHN2B-T?","answer":"It is a 2 Mbit serial flash memory with an SPI interface running at up to 70 MHz, organized as 256 bytes per page across 1024 pages."},{"question":"What is the difference between AT45DB021E-SSHN2B-T and AT45DB021E-SSHN-T?","answer":"Both are 2 Mbit SPI flash in 8-SOIC with the same 70 MHz clock and supply range. The -SSHN2B-T uses 256-byte pages (1024 pages total), while the -SSHN-T uses 264-byte pages (1024 pages total). The page-size difference requires a firmware constant change but the footprint and electrical interface are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/AT45DB021E-SSHN2B-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/AT45DB021E-SSHN2B-T 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}}