{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3222ECDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3222ECDWR","canonicalUrl":"https://icboms.com/texas-instruments/MAX3222ECDWR","factsUrl":"https://icboms.com/api/mcp/products/MAX3222ECDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3222ECDWR, RS-232 transceiver, Full duplex, 500kbps data rate, 3V to 5.5V supply, 2/2 drivers/receivers, 300 mV receiver hysteresis, 20-SOIC package, 0°C to 70°C.","salesMarkdown":"The Texas Instruments MAX3222ECDWR is a full-duplex RS-232 transceiver that handles two driver and two receiver channels (2/2) in a 20-SOIC surface-mount package. The 500 kbps data rate covers standard UART speeds up to 115.2 kbps with margin, and the 300 mV receiver hysteresis cleans up noise on longer cable runs. This is a commercial-temperature part (0°C to 70°C), suited for desktop peripherals, point-of-sale terminals, and telecom interface cards where the ambient stays indoors. ## Supply compatibility — 3.3V and 5V without a level shifter No external level translator or separate VCC for the charge pump is needed — the on-chip charge pump generates the RS-232 voltage levels from the single supply rail. ## Data rate headroom for real UART traffic Rated at 500 kbps, the MAX3222ECDWR comfortably handles standard baud rates up to 115.2 kbps and still has margin for 230.4 kbps or 460.8 kbps links. For designs that only need 115.2 kbps, the extra headroom means the charge pump isn't pushed to its limit, keeping EMI lower. The supplier device package is 20-SOIC. It's a surface-mount part, so it reflows with standard lead-free profiles. No thermal pad or exposed paddle — just the standard SOIC land pattern.","metaTitle":"MAX3222ECDWR RS-232 Transceiver, 500 kbps, 20-SOIC","metaDescription":"Texas Instruments MAX3222ECDWR RS-232 transceiver, 3V to 5.5V supply, 500 kbps data rate, 2/2 driver/receiver, 20-SOIC. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Type":"Transceiver","Duplex":"Full","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS232","Data Rate":"500kbps","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Base Product Number":"MAX3222","Receiver Hysteresis":"300 mV","Operating Temperature":"0°C~70°C","Supplier Device Package":"20-SOIC","Number of Drivers/Receivers":"2/2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/445041c92021f26997981b64349fda77.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX3222ECDWR/alternatives.json"},"ai":{"faq":[{"question":"Is MAX3222ECDWR compatible with 3.3V or 5V systems?","answer":"No external level translator is needed."},{"question":"What is the data rate of MAX3222ECDWR?","answer":"500 kbps, which handles standard UART baud rates up to 115.2 kbps with headroom for 230.4 kbps or 460.8 kbps links."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3222ECDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3222ECDWR 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}}