{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX232IDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX232IDR","canonicalUrl":"https://icboms.com/texas-instruments/MAX232IDR","factsUrl":"https://icboms.com/api/mcp/products/MAX232IDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX232IDR, RS-232 transceiver, full duplex, 2/2 drivers/receivers, 120 kbps data rate, 4.5V to 5.5V supply, 16-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## RS-232 transceiver in a 16-SOIC — the standard serial port interface It handles the voltage-level translation between a 5V UART logic side and the ±12V RS-232 bus, with a data rate of 120 kbps. ## 120 kbps data rate — enough for most legacy serial links The 120 kbps data rate is the standard for the original MAX232 family. It comfortably handles 115200 baud UART communication, which covers the vast majority of RS-232 applications — terminal connections, industrial sensors, barcode scanners, and serial consoles. If your design needs higher throughput (e.g., 1 Mbps), this part is not the fit; look at the MAX3232 or MAX3222 families instead. The supply voltage range is 4.5V to 5.5V, which means the MAX232IDR requires a 5V rail. It cannot run from a 3.3V supply. If your system is 3.3V-only, you need a 3.3V RS-232 transceiver such as the MAX3232 family. ROHS3 compliant, so it passes European and global environmental requirements without exemption paperwork. For dual-source planning, the base MAX232 family is second-sourced by multiple vendors (TI, Maxim, Analog Devices, etc.), though pin compatibility should be verified per alternate order code.","metaTitle":"MAX232IDR RS-232 Transceiver, 120 kbps, 16-SOIC","metaDescription":"Texas Instruments MAX232IDR full-duplex RS-232 transceiver with 2/2 drivers/receivers, 120 kbps data rate, 4.5V-5.5V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"120Kbps","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"MAX232","Receiver Hysteresis":"500 mV","Operating Temperature":"-40°C~85°C","Supplier Device Package":"16-SOIC","Number of Drivers/Receivers":"2/2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","priceTiers":[{"qty":1,"price":"$0.93000","currency":"USD"},{"qty":10,"price":"$0.81800","currency":"USD"},{"qty":25,"price":"$0.76880","currency":"USD"},{"qty":100,"price":"$0.62730","currency":"USD"},{"qty":250,"price":"$0.58268","currency":"USD"},{"qty":500,"price":"$0.49588","currency":"USD"},{"qty":1000,"price":"$0.39671","currency":"USD"},{"qty":2500,"price":"$0.35952","currency":"USD"},{"qty":5000,"price":"$0.35086","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/952f8a8ddc00a2d59f35cc6206c49828.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX232IDR/alternatives.json"},"ai":{"faq":[{"question":"What is the data rate of MAX232IDR?","answer":"The MAX232IDR supports a data rate of 120 kbps. This is sufficient for standard RS-232 communication at 115200 baud and below, covering most legacy serial interfaces."},{"question":"What is the difference between MAX232IDR and MAX232DR?","answer":"Both are 5V RS-232 transceivers in 16-SOIC with the same 2/2 driver/receiver count and 120 kbps data rate. For outdoor, automotive, or factory-floor environments, the 'I' variant is the correct choice."},{"question":"Can MAX232IDR be used with 3.3V systems?","answer":"No. The supply voltage range is 4.5V to 5.5V, so it requires a 5V rail. For 3.3V systems, use a 3.3V RS-232 transceiver such as the MAX3232 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX232IDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX232IDR 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}}