{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3222IDWG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3222IDWG4","canonicalUrl":"https://icboms.com/texas-instruments/MAX3222IDWG4","factsUrl":"https://icboms.com/api/mcp/products/MAX3222IDWG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3222IDWG4 RS-232 transceiver, full duplex, 250 kbps data rate, 3V-5.5V supply, 2/2 drivers/receivers, 300 mV receiver hysteresis, -40°C to 85°C, 20-SOIC surface-mount package, active lifecycle.","salesMarkdown":"## 250 kbps data rate — what it buys on the bus At 250 kbps this transceiver comfortably handles 115200 baud with a 2x oversampling margin, but it will not sustain the 1 Mbps rates some newer RS-232 parts claim. If your design needs 460800 baud or higher, look at the MAX3223 family with 1 Mbps capability. For the vast majority of legacy serial ports, bar-code scanners, and PLC programming cables, 250 kbps is the right tier — no overpaying for speed you cannot use. Dropout at the low end is not an issue — the charge pump generates the RS-232 ±5 V swing from a 3 V rail internally. Just ensure the supply bypass cap is 0.1 µF close to the VCC pin per the reference layout. There is no last-time-buy notice in effect, and no successor part number has been issued. This part can be qualified into a production BOM without a near-term end-of-life contingency plan.","metaTitle":"MAX3222IDWG4 RS-232 Transceiver, 250 kbps, 20-SOIC","metaDescription":"Texas Instruments MAX3222IDWG4 RS-232 transceiver, full duplex, 250 kbps data rate, 3V-5.5V supply, 2/2 driver/receiver, -40°C to 85°C, 20-SOIC.","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":"Tube","Protocol":"RS232","Data Rate":"250kbps","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Base Product Number":"MAX3222","Receiver Hysteresis":"300 mV","Operating Temperature":"-40°C~85°C","Supplier Device Package":"20-SOIC","Number of Drivers/Receivers":"2/2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2dd0c720be57623e93e05eecf9ce44ce.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX3222IDWG4/alternatives.json"},"ai":{"faq":[{"question":"Is MAX3222IDWG4 obsolete?","answer":"No. There is no end-of-life notification from Texas Instruments, and no successor part has been designated."},{"question":"What is the data rate of MAX3222IDWG4?","answer":"The MAX3222IDWG4 signals at 250 kbps, which covers standard UART rates up to 115200 baud with margin. It does not support 1 Mbps rates."},{"question":"What is the difference between MAX3222IDWG4 and MAX3222CDBR?","answer":"The MAX3222CDBR is the tape-and-reel packaged variant of the same RS-232 transceiver die. The IDWG4 suffix indicates the tube-packaged 20-SOIC version. The choice is a logistics decision: tube for prototype or low-volume builds, tape-and-reel for automated pick-and-place production."},{"question":"Is MAX3222IDWG4 compatible with 5V logic?","answer":"Yes. Receiver inputs tolerate 5 V logic levels when the part is powered from 3.3 V."},{"question":"What is the typical application of MAX3222IDWG4?","answer":"This transceiver is used for RS-232 serial communication in industrial control panels, point-of-sale terminals, telecom base-station management ports, and PLC programming interfaces — anywhere a UART needs to be extended over a few metres of cable with ±5 V signalling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3222IDWG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3222IDWG4 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}}