{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADSP-2171BST-104","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADSP-2171BST-104","canonicalUrl":"https://icboms.com/analog-devices/ADSP-2171BST-104","factsUrl":"https://icboms.com/api/mcp/products/ADSP-2171BST-104","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADSP-2171BST-104 Fixed Point DSP, 26 MHz clock rate, 10 kB on-chip RAM, 5.00 V core/I/O, 128-LQFP surface mount, industrial temperature -40°C to 85°C.","salesMarkdown":"## Fixed-point DSP with 26 MHz clock and 10 kB RAM The ADSP-2171BST-104 is a 16-bit fixed-point digital signal processor from Analog Devices, clocked at 26 MHz with 10 kB of on-chip RAM — the working memory for your algorithm and buffers sits entirely on-die, so the external memory interface is only needed for program storage and bulk data. Core and I/O both run at 5.00 V, which simplifies the power rail design — a single 5 V supply feeds the DSP without a separate core regulator. ## Package and board-fit for the 128-LQFP Housed in a 128-lead LQFP (supplier device package 128-TQFP, 14x20 mm body), the 0.50 mm pitch demands a PCB with at least four layers for fan-out — the inner rows of pins route on buried layers, not on the outer two. Surface-mount package with no exposed thermal pad; the junction-to-ambient thermal path relies on the leadframe and the board copper. A solid ground plane under the package and vias under the body help pull heat into the inner layers. ## Active lifecycle and compliance note RoHS compliance is not claimed for this variant (RoHS non-compliant per the listing), so verify your assembly line's exemption allowance or plan for a leaded-solder profile if the rest of the BOM is RoHS.","metaTitle":"ADSP-2171BST-104 Analog Devices Fixed Point DSP, 26 MHz","metaDescription":"Analog Devices ADSP-2171BST-104 Fixed Point DSP, 26 MHz clock, 10 kB on-chip RAM, 128-LQFP. Active production, industrial temp range -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Fixed Point","Package":"Bulk","Interface":"Host Interface, Serial Port","Clock Rate":"26MHz","On-Chip RAM":"10kB","Mounting Type":"Surface Mount","Voltage - I/O":"5.00V","Package / Case":"128-LQFP","Voltage - Core":"5.00V","lifecycle_stage":"eol_hot","Non-Volatile Memory":"External","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"128-TQFP (14x20)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$36.66","stockQuantity":0,"priceTiers":[{"qty":9,"price":"$36.66000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8e96da436a7bd49e42d5ec99cc10572b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for ADSP-2171BST-104?","answer":"The ADSP-2171BS-104 shares the same 26 MHz clock rate, 10 kB on-chip RAM, and 5.00 V supply, but comes in a different package variant (the 'BS' suffix vs 'BST'). Confirm the package footprint compatibility before substituting — the BST variant uses a 128-LQFP, while the BS variant may use a different body."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADSP-2171BST-104","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADSP-2171BST-104 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}}