{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX232IDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX232IDWR","canonicalUrl":"https://icboms.com/texas-instruments/MAX232IDWR","factsUrl":"https://icboms.com/api/mcp/products/MAX232IDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX232IDWR, RS-232 Transceiver, Full Duplex, 2/2 Drivers/Receivers, 120 kbps, 4.5V-5.5V Supply, 16-SOIC, -40°C to 85°C.","salesMarkdown":"## RS-232 link at 120 kbps — the 5 V workhorse The 120 kbps data rate covers the common 115200 baud ceiling with margin, but you won't push it past that — the charge-pump switching and slew-rate limits cap out around there. Receiver hysteresis of 500 mV cleans up noise on cables up to a few meters; below that threshold the input treats ringing as valid data. If your board runs 3.3 V logic, you'll need a separate 5 V supply or a 3.3 V-compatible RS-232 part like the MAX3232 family. At 85°C the charge-pump efficiency drops; budget a few extra milliamps from the 5 V rail if the ambient runs hot. The wide body means more copper for heat spreading — not that this part dissipates much (typical quiescent current is a few mA), but it helps in reflow. For dual-sourcing resilience, the MAX232 family includes multiple package and temperature variants — the base MAX232 is a direct functional equivalent in a narrower SOIC-16 package, though the footprint differs.","metaTitle":"MAX232IDWR RS-232 Transceiver, 120 kbps, 16-SOIC","metaDescription":"TI MAX232IDWR RS-232 transceiver IC: full-duplex 2/2 driver/receiver, 120 kbps data rate, 4.5V-5.5V supply, -40°C to 85°C, 16-SOIC. Active lifecycle, ROHS3.","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 (0.295\\\", 7.50mm 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":"$1.3300","priceTiers":[{"qty":1,"price":"$1.33000","currency":"USD"},{"qty":10,"price":"$1.19300","currency":"USD"},{"qty":25,"price":"$1.13280","currency":"USD"},{"qty":100,"price":"$0.93040","currency":"USD"},{"qty":250,"price":"$0.86968","currency":"USD"},{"qty":500,"price":"$0.76856","currency":"USD"},{"qty":1000,"price":"$0.60676","currency":"USD"},{"qty":2000,"price":"$0.56631","currency":"USD"},{"qty":6000,"price":"$0.53799","currency":"USD"},{"qty":10000,"price":"$0.51777","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/952f8a8ddc00a2d59f35cc6206c49828.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX232IDWR/alternatives.json"},"ai":{"faq":[{"question":"What is the data rate of MAX232IDWR?","answer":"The MAX232IDWR supports a data rate of 120 kbps. This covers standard 115200 baud serial links with margin, but the part is not rated for higher speeds like 250 kbps or 1 Mbps."},{"question":"What is the closest pin-compatible alternative to MAX232IDWR?","answer":"The MAX232ID is the same die in a narrower 16-SOIC (3.90 mm width) package — functionally identical but footprint-incompatible due to the body width difference. For a drop-in replacement in the wide-body 16-SOIC, the STMicroelectronics ST232 or the Maxim MAX232 (wide-body variant) are pin-compatible alternatives, though verify supply voltage and temp range against your BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX232IDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX232IDWR 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}}