{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3222CDBRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3222CDBRE4","canonicalUrl":"https://icboms.com/texas-instruments/MAX3222CDBRE4","factsUrl":"https://icboms.com/api/mcp/products/MAX3222CDBRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3222CDBRE4, RS-232 transceiver, full duplex, 2/2 drivers/receivers, 250 kbps data rate, 3V to 5.5V supply, 20-SSOP package, 0°C to 70°C operating temperature.","salesMarkdown":"It handles serial communication at 250 kbps, which is adequate for legacy UART links, terminal interfaces, and industrial control panels that don't need the higher rates of newer transceivers. ## Supply voltage and 3.3 V compatibility At 3.3 V the transceiver meets RS-232 output levels without a charge pump boost issue — the internal charge pump generates the necessary ±5.5 V swing from the single supply. This makes the MAX3222CDBRE4 a direct fit for 3.3 V MCU UARTs that need to talk to legacy DB9 ports or industrial equipment still running ±12 V signaling. ## Receiver hysteresis and noise margin The 300 mV receiver hysteresis provides built-in noise rejection on the incoming RS-232 lines. In a factory floor or motor-drive environment where cable runs pick up common-mode noise, that hysteresis prevents the receiver from chattering on a marginal signal.","metaTitle":"MAX3222CDBRE4 RS-232 Transceiver, 250 kbps, 20-SSOP","metaDescription":"TI MAX3222CDBRE4 RS-232 transceiver, full duplex, 2/2 drivers/receivers, 250 kbps, 3V to 5.5V supply, 20-SSOP.","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-SSOP (0.209\\\", 5.30mm 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-SSOP","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/MAX3222CDBRE4/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent of MAX3222CDBRE4?","answer":"The MAX3222 family includes several package and temperature variants. A pin-compatible alternative within the same family would share the same 20-SSOP footprint and 2/2 driver/receiver count, but verify the temperature grade and supply range against your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3222CDBRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3222CDBRE4 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}}