{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS2408S+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS2408S","canonicalUrl":"https://icboms.com/analog-devices/DS2408S","factsUrl":"https://icboms.com/api/mcp/products/DS2408S%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS2408S+, 1-Wire 8-channel I/O expander, open-drain outputs, 2.8V-5.25V supply, -40°C to 85°C, 16-SOIC package.","salesMarkdown":"## What the DS2408S+ does on the bus The Maxim Integrated DS2408S+ is an 8-channel programmable I/O expander that communicates over a single-wire data line plus ground — the 1-Wire interface. Each of the eight I/O pins is an open-drain output that can sink current or be read as a digital input. The part operates from a 2.8V to 5.25V supply, covering both 3.3V and 5V logic rails without external level shifters. It is housed in a 16-SOIC package (0.154\" width, 3.90mm body) and rated for industrial temperature environments from -40°C to 85°C. ## 1-Wire interface — what it means for the BOM The 1-Wire bus uses only one data wire plus ground, so the DS2408S+ adds eight digital I/O lines to a system that already has a 1-Wire master (typically a microcontroller with a 1-Wire port or a bit-banged GPIO). This saves board space and connector pins compared to an I²C or SPI expander. The open-drain outputs can sink current from external loads (LEDs, relays, optocouplers) when pulled low; the high-impedance state lets the line be read as an input. No interrupt output is provided, so the master must poll the device to detect state changes. ## Lifecycle and sourcing reality The part is ROHS3 compliant.","metaTitle":"DS2408S+ 1-Wire 8-Ch I/O Expander, 16-SOIC, Active","metaDescription":"DS2408S+ 1-Wire 8-channel I/O expander with open-drain outputs, 2.8V-5.25V supply, -40°C to 85°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Interface":"1-Wire®","Output Type":"Open Drain","Mounting Type":"Surface Mount","Number of I/O":"8","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Interrupt Output":"No","Voltage - Supply":"2.8V ~ 5.25V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.8","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.80000","currency":"USD"},{"qty":10,"price":"$7.94800","currency":"USD"},{"qty":25,"price":"$7.57800","currency":"USD"},{"qty":100,"price":"$6.57990","currency":"USD"},{"qty":250,"price":"$6.28424","currency":"USD"},{"qty":500,"price":"$5.72972","currency":"USD"},{"qty":1000,"price":"$4.99041","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/67fe031c540c72f2e7ffc769aca48083.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between DS2408S+ and DS2408?","answer":"The DS2408S+ is the surface-mount 16-SOIC variant of the DS2408. The base DS2408 part number typically refers to a different package option (e.g., 16-pin DIP or other). The electrical specifications — 1-Wire interface, 8 open-drain I/O, 2.8V to 5.25V supply, -40°C to 85°C range — are identical. The 'S+' suffix indicates the 16-SOIC package and ROHS3 compliance."},{"question":"Can DS2408S+ be used with 5V logic?","answer":"Yes. The supply voltage range of 2.8V to 5.25V covers both 3.3V and 5V systems. The 1-Wire interface and open-drain outputs are compatible with 5V logic levels when the part is powered at 5V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS2408S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS2408S 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}}