{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3222CDWRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3222CDWRE4","canonicalUrl":"https://icboms.com/texas-instruments/MAX3222CDWRE4","factsUrl":"https://icboms.com/api/mcp/products/MAX3222CDWRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3222CDWRE4 RS-232 transceiver, full-duplex, 2/2 drivers/receivers, 250 kbps data rate, 3V to 5.5V supply, 20-SOIC wide package, 0°C to 70°C operating temperature.","salesMarkdown":"## RS-232 transceiver with 250 kbps and wide supply range It handles serial data at rates up to 250 kbps and operates from a 3V to 5.5V supply, making it a straightforward fit for 3.3V or 5V UART interfaces in equipment like point-of-sale terminals, data-entry devices, and serial-port adapters. ## Commercial temperature grade limits deployment scope ## Receiver hysteresis of 300 mV for noise rejection The receiver inputs include 300 mV of hysteresis, which helps reject noise on longer RS-232 cable runs. This is a practical margin for maintaining clean data edges when the cable picks up coupled interference from nearby switching supplies or motor drives.","metaTitle":"MAX3222CDWRE4 RS-232 Transceiver, 250 kbps, 3V-5.5V","metaDescription":"MAX3222CDWRE4 RS-232 transceiver from Texas Instruments. Full-duplex, 2/2 drivers/receivers, 250 kbps data rate, 3V-5.5V supply, 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":"Tape & Reel (TR)","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":"0°C~70°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/MAX3222CDWRE4/alternatives.json"},"ai":{"faq":[{"question":"Is MAX3222CDWRE4 a direct replacement for MAX3222CDWR?","answer":"The MAX3222CDWRE4 is functionally identical to the MAX3222CDWR — same RS-232 transceiver, same 2/2 driver/receiver count, same 250 kbps data rate, same 20-SOIC package. The '' suffix indicates a lead-free (RoHS) finish variant from Texas Instruments. It is a drop-in replacement for the non- version on existing boards."},{"question":"Is MAX3222CDWRE4 compatible with 3.3V logic?","answer":"Yes. With a supply range of 3V to 5.5V, the MAX3222CDWRE4 operates directly from a 3.3V rail. The logic inputs and outputs are compatible with 3.3V CMOS levels, so it interfaces cleanly with 3.3V microcontrollers and FPGAs without external level shifters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3222CDWRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3222CDWRE4 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}}