{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3232CDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3232CDRG4","canonicalUrl":"https://icboms.com/texas-instruments/MAX3232CDRG4","factsUrl":"https://icboms.com/api/mcp/products/MAX3232CDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3232CDRG4, RS-232 Transceiver, Full Duplex, 2/2 Drivers/Receivers, 250kbps Data Rate, 3V~5.5V Supply, 300mV Hysteresis, 0°C~70°C, 16-SOIC Package, Tape & Reel.","salesMarkdown":"It handles serial communication at data rates up to 250 kbps, which covers most legacy UART-based protocols like simple terminal links, barcode scanners, and industrial panel interfaces. The supply range spans 3V to 5.5V, so the same part works on a 3.3V microcontroller rail or a legacy 5V RS-232 bus without a separate level translator. The receiver hysteresis is spec'd at 300 mV. That is the dead zone between the switching thresholds — any noise spike smaller than 300 mV on the RS-232 line won't toggle the receiver output. In a factory-floor or motor-drive environment where long cables pick up coupled noise, that margin saves you from spurious characters or framing errors. Compare that to older RS-232 parts with 200 mV hysteresis; the extra 100 mV here is a genuine noise-margin improvement for a 12-foot cable run. That covers office equipment, point-of-sale terminals, lab instruments, and climate-controlled industrial cabinets. If your design sees -40°C startup or +85°C ambient near a hot power supply, you need the industrial-grade MAX3232ID or MAX3232EID instead. The pinout is identical, so swapping temperature grades is a straight BOM-line change — no board respin. That means TI no longer manufactures this exact commercial-temperature, tape-and-reel variant. For a production line that already qualifies this part, the immediate question is whether you have enough stock to cover your remaining build, or whether you switch to a drop-in replacement. No board change is needed — just update the BOM line and re-qualify the temperature range in your system test.","metaTitle":"MAX3232CDRG4 RS-232 Transceiver, 250 kbps, 3V-5.5V, SOIC-16","metaDescription":"Texas Instruments MAX3232CDRG4 RS-232 transceiver, 2/2 drivers/receivers, full duplex, 250 kbps, 3V to 5.5V supply, 300 mV hysteresis, 0°C to 70°C, SOIC-16.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Base Product Number":"MAX3232","Receiver Hysteresis":"300 mV","Operating Temperature":"0°C~70°C","Supplier Device Package":"16-SOIC","Number of Drivers/Receivers":"2/2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bd1772ada4594b24defcd65402aeacba.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX3232CDRG4/alternatives.json"},"ai":{"faq":[{"question":"Is MAX3232CDRG4 compatible with 5V supply?","answer":"The RS-232 driver outputs swing to the supply rail voltage, so a 5V supply gives the full ±5V RS-232 levels; at 3.3V the swing is reduced but still within the ±3V minimum that most RS-232 receivers recognize."},{"question":"What is the replacement for MAX3232CDRG4?","answer":"The closest pin-compatible replacement is the MAX3232ID from Texas Instruments. It shares the same SOIC-16 footprint, the same 2/2 driver/receiver count, the same 250 kbps data rate, and the same 3V to 5.5V supply range. That is a straight BOM swap with no board change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3232CDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3232CDRG4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:59:22.463Z","lastPublished":"2026-07-16T11:59:22.463Z","indexable":true}}