{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3243IDW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MAX3243IDW","canonicalUrl":"https://icboms.com/texas-instruments/MAX3243IDW","factsUrl":"https://icboms.com/api/mcp/products/MAX3243IDW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MAX3243IDW RS-232 transceiver, full duplex, 3 drivers / 5 receivers, 250 kbps data rate, 3V to 5.5V supply, 28-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## RS-232 line interface with flexible supply The MAX3243IDW is a full-duplex RS-232 transceiver integrating three drivers and five receivers in a single 28-SOIC package — a common count for multi-port serial interfaces in industrial controllers, point-of-sale terminals, and telecom line cards. Data rate is rated at 250 kbps, which covers standard UART speeds up to 115.2 kbps with margin for the cable capacitance and driver slew rate. ## Temperature grade and package fit The 28-SOIC wide-body (7.50 mm width) footprint is a standard surface-mount package — the same land pattern used by many RS-232 and RS-485 transceivers, so a board layout change is rarely needed when swapping between compatible parts. Receiver hysteresis is specified at 500 mV, which provides noise immunity on the RX line in electrically noisy environments without external Schmitt triggers.","metaTitle":"MAX3243IDW RS-232 Transceiver, 3/5 Driver/Receiver, 250 kbps","metaDescription":"MAX3243IDW RS-232 transceiver, 3 drivers/5 receivers, 250 kbps, 3V-5.5V supply, -40°C to 85°C, 28-SOIC. Active, RoHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tube","Protocol":"RS232","Data Rate":"250kbps","Mounting Type":"Surface Mount","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Receiver Hysteresis":"500 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"28-SOIC","Number of Drivers/Receivers":"3/5"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.20000","currency":"USD"},{"qty":10,"price":"$2.87300","currency":"USD"},{"qty":25,"price":"$2.71640","currency":"USD"},{"qty":100,"price":"$2.35430","currency":"USD"},{"qty":250,"price":"$2.23356","currency":"USD"},{"qty":500,"price":"$2.00418","currency":"USD"},{"qty":1000,"price":"$1.70850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8e92c0ad318ccc943ebc475405379628.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will the MAX3243IDW drop into a board designed for the SN65HVD233MDREP?","answer":"No — the SN65HVD233MDREP is a CAN transceiver with a half-duplex bus, different protocol (CAN vs RS-232), and a 1/1 driver/receiver count. The MAX3243IDW is an RS-232 full-duplex part with 3/5 drivers/receivers; the two are not pin-compatible or functionally interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MAX3243IDW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MAX3243IDW 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}}