{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN65C3221DBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN65C3221DBR","canonicalUrl":"https://icboms.com/texas-instruments/SN65C3221DBR","factsUrl":"https://icboms.com/api/mcp/products/SN65C3221DBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN65C3221DBR, RS-232 transceiver, 1 driver / 1 receiver, full duplex, 1 Mbps data rate, 3 V to 5.5 V supply, 16-SSOP package, -40°C to 85°C operation.","salesMarkdown":"It handles full-duplex communication at data rates up to 1 Mbps, making it suitable for point-to-point serial links in industrial and consumer equipment. ## Supply voltage range and logic compatibility The receiver hysteresis of 500 mV provides noise immunity on the RS-232 bus, reducing false triggering on long cable runs. ## Temperature grade and package The 16-SSOP package (5.30 mm body width) is a surface-mount footprint that suits compact PCB layouts, though the 0.209-inch (5.30 mm) width requires careful routing on dense boards. ## Lifecycle and sourcing posture Sourcing is straightforward — quoted per RFQ against the BOM quantity.","metaTitle":"SN65C3221DBR RS-232 Transceiver 1/1 Full Duplex 1Mbps","metaDescription":"Texas Instruments SN65C3221DBR RS-232 transceiver, 1 driver/1 receiver, full duplex, 1Mbps data rate, 3V-5.5V supply, 16-SSOP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS232","Data Rate":"1Mbps","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Receiver Hysteresis":"500 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-SSOP","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.70000","currency":"USD"},{"qty":10,"price":"$2.42400","currency":"USD"},{"qty":25,"price":"$2.28680","currency":"USD"},{"qty":100,"price":"$1.94850","currency":"USD"},{"qty":250,"price":"$1.82956","currency":"USD"},{"qty":500,"price":"$1.60086","currency":"USD"},{"qty":1000,"price":"$1.32643","currency":"USD"},{"qty":2000,"price":"$1.29450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6f427c37158917149f34bfe552183c98.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN65C3221DBR and SN65C3221DB?","answer":"The SN65C3221DBR is the tape-and-reel (TR) packaging variant of the SN65C3221DB, which is typically supplied in tubes or cut tape. The electrical specifications and package (16-SSOP) are identical. The 'R' suffix indicates reel packaging for automated assembly."},{"question":"Does SN65C3221DBR require external charge pump capacitors?","answer":"Yes, like most RS-232 transceivers, the SN65C3221DBR needs external charge pump capacitors to generate the RS-232 voltage levels. The datasheet specifies typical values (0.1 µF to 1 µF) and connection pins — consult the TI datasheet for the exact schematic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN65C3221DBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN65C3221DBR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}