{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC33689DPEWR2","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC33689DPEWR2","canonicalUrl":"https://icboms.com/nxp/MC33689DPEWR2","factsUrl":"https://icboms.com/api/mcp/products/MC33689DPEWR2","rawCanonicalId":null},"summary":{"shortDescription":"NXP MC33689DPEWR2, Automotive Grade, Specialized Interface IC, SPI Serial, 5.5V ~ 18V Supply, Surface Mount, 32-BSSOP (7.50mm Width), 32-SOIC, Active, ROHS3 Compliant.","salesMarkdown":"The NXP MC33689DPEWR2 is a specialized interface IC rated for automotive environments, controlled over an SPI serial bus. It operates from a 5.5 V to 18 V supply rail, which covers the nominal 12 V automotive battery bus including cold-crank dips and load-dump transients within the range. The 5.5 V to 18 V supply range is the first thing to check when you are planning the power architecture. If your board runs on a regulated 5 V rail, this part will not start — the minimum is 5.5 V. It is designed for the unregulated or semi-regulated 12 V bus typical in vehicles, where the voltage swings between battery float (around 14 V) and cranking dips (down to 6 V or so). The 18 V upper end gives headroom for load-dump events without needing an external clamp, as long as the transient stays within that ceiling. ## SPI serial interface — host-side integration Control and configuration happen through an SPI serial interface. That means the host MCU needs at least one SPI port with chip-select, clock, and data lines dedicated to this device. The SPI bus also implies a firmware driver to handle the register map — there is no I²C or parallel fallback. If your design already has a free SPI peripheral, integration is straightforward; if not, you are adding a bus or bit-banging GPIOs. For a production BOM line, that removes the sourcing uncertainty that comes with obsolete or NRND parts.","metaTitle":"MC33689DPEWR2 Automotive Interface IC, SPI, 5.5V-18V","metaDescription":"MC33689DPEWR2 automotive-grade specialized interface IC with SPI serial control, 5.5V to 18V supply range, in 32-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Grade":"Automotive","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"SPI Serial","Mounting Type":"Surface Mount","Package / Case":"32-BSSOP (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"5.5V ~ 18V","Supplier Device Package":"32-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.29","priceTiers":[{"qty":1,"price":"$6.29000","currency":"USD"},{"qty":10,"price":"$5.65000","currency":"USD"},{"qty":25,"price":"$5.34120","currency":"USD"},{"qty":100,"price":"$4.62910","currency":"USD"},{"qty":250,"price":"$4.39172","currency":"USD"},{"qty":1000,"price":"$3.32347","currency":"USD"},{"qty":2000,"price":"$3.15729","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bd5959197122a3bbfa6082cfe07d1a20.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MC33689DPEWR2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC33689DPEWR2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC33689DPEWR2 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}}