{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX818MCUA","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX818MCUA","canonicalUrl":"https://icboms.com/analog-devices/MAX818MCUA","factsUrl":"https://icboms.com/api/mcp/products/MAX818MCUA","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX818MCUA, Simple Reset/Power-On Reset, Active Low, Open Drain, 140ms Minimum Reset Timeout, 4.4V Threshold, -40°C to 85°C, 8-µMAX Surface Mount Package.","salesMarkdown":"## Reset supervisor for 5V rails — 140 ms timeout, 4.4 V threshold The Maxim Integrated MAX818MCUA is a single-channel simple reset/power-on reset supervisor that asserts an active-low, open-drain reset output when the monitored voltage drops below 4.4 V. The open-drain output lets you wire-OR the reset signal with other supervisors or pull it up to a different voltage rail, which is common in mixed-voltage designs. For a procurement planner, this removes the urgency to stockpile or qualify a substitute. The part is RoHS non-compliant, so verify your assembly house can accept lead-bearing solder — if your line has moved to full RoHS, you will need the lead-free variant.","metaTitle":"MAX818MCUA Simple Reset/Power-On Reset, 4.4V Threshold","metaDescription":"MAX818MCUA is an active-low, open-drain reset supervisor with 4.4V threshold and 140ms minimum timeout. Industrial temp range. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Open Drain or Open Collector","Package":"Bulk","Mounting Type":"Surface Mount","Reset Timeout":"140ms Minimum","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.4V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-µMAX","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.68","stockQuantity":0,"priceTiers":[{"qty":82,"price":"$3.68000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/62686849112a5b7e03f27d69951a46d8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the reset timeout of MAX818MCUA?","answer":"The reset timeout is a minimum of 140 ms. This means the reset output stays asserted for at least 140 ms after the monitored voltage rises above the 4.4 V threshold, giving the system power supplies and oscillator time to settle."},{"question":"Is MAX818MCUA active low reset?","answer":"Yes, the reset output is active low. The open-drain output pulls low when the monitored voltage falls below 4.4 V, and it stays low through the 140 ms timeout period after recovery."},{"question":"What package does MAX818MCUA come in?","answer":"It is offered in an 8-µMAX surface-mount package, which is the Maxim branding for an 8-pin MSOP with a 3 mm × 3 mm body. The package is also described as 8-TSSOP/8-MSOP with a 0.118-inch (3.00 mm) width."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX818MCUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX818MCUA 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}}