{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3109ETJ+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX3109ETJT","canonicalUrl":"https://icboms.com/analog-devices/MAX3109ETJT","factsUrl":"https://icboms.com/api/mcp/products/MAX3109ETJ%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX3109ETJ+T dual UART, 2-channel DUART, 24Mbps max data rate, 128-byte FIFO, RS232/RS485 protocol, 1.71-3.6V supply, 32-TQFN (5x5) surface-mount package.","salesMarkdown":"## Dual UART with 128-byte FIFO and 24 Mbps throughput The MAX3109ETJ+T is a 2-channel DUART from Analog Devices, supporting RS232 and RS485 protocols at a maximum data rate of 24 Mbps. Each channel includes a 128-byte FIFO, which reduces host interrupt overhead by buffering received data until a threshold is reached, and the part integrates an internal oscillator to generate the baud clock without an external crystal. With auto flow control, IrDA encoder/decoder, and false start bit detection on board, this UART handles the full RS232 handshake and infrared communication without glue logic. It is ROHS3 compliant, meeting the current EU restriction on hazardous substances directive.","metaTitle":"MAX3109ETJ+T Dual UART, 24Mbps, 128-Byte FIFO, TQFN","metaDescription":"MAX3109ETJ+T dual UART from Analog Devices, 24Mbps data rate, 128-byte FIFO, RS232/RS485, 1.71-3.6V supply, 32-TQFN. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"FIFO's":"128 Byte","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Internal Oscillator","Protocol":"RS232, RS485","Mounting Type":"Surface Mount","Package / Case":"32-WFQFN Exposed Pad","Data Rate (Max)":"24Mbps","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 3.6V","Number of Channels":"2, DUART","With Auto Flow Control":"Yes","Supplier Device Package":"32-TQFN (5x5)","With IrDA Encoder/Decoder":"Yes","With False Start Bit Detection":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.64","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.64000","currency":"USD"},{"qty":10,"price":"$12.53400","currency":"USD"},{"qty":25,"price":"$12.01440","currency":"USD"},{"qty":100,"price":"$10.58570","currency":"USD"},{"qty":250,"price":"$10.06616","currency":"USD"},{"qty":500,"price":"$9.41674","currency":"USD"},{"qty":1000,"price":"$8.63742","currency":"USD"},{"qty":2500,"price":"$8.31270","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the FIFO size on the MAX3109ETJ+T?","answer":"The MAX3109ETJ+T has a 128-byte FIFO per channel, which buffers received data to reduce the interrupt service routine frequency on the host processor."},{"question":"What protocols does the MAX3109ETJ+T support?","answer":"It supports RS232 and RS485 protocols, with integrated auto flow control for hardware handshake and an IrDA encoder/decoder for infrared serial communication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX3109ETJT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX3109ETJT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}