{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX14830ETM+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX14830ETMT","canonicalUrl":"https://icboms.com/analog-devices/MAX14830ETMT","factsUrl":"https://icboms.com/api/mcp/products/MAX14830ETM%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX14830ETM+T quad universal asynchronous receiver-transmitter (UART), 128-byte FIFO per channel, RS232/RS485 protocol, 48-TQFN exposed pad, surface mount.","salesMarkdown":"## Quad UART with deep FIFOs for multi-channel serial The MAX14830ETM+T is a quad universal asynchronous receiver-transmitter (UART) from Analog Devices, packing four independent serial channels into a 48-TQFN exposed-pad package. Each channel carries a 128-byte FIFO — deep enough to buffer a full packet at common baud rates without the host CPU servicing every byte, which reduces interrupt overhead on the system bus. ## Protocol flexibility and flow control The UART engine handles both RS232 and RS485 protocols, so the same part can serve a legacy DB9 port and a differential multi-drop bus on different channels. Auto flow control (RTS/CTS) is built in, and an IrDA encoder/decoder is on-die — the part can talk to an optical transceiver without an external codec chip. An internal oscillator eliminates the need for an external crystal or resonator on the board, saving two components and the associated PCB real estate. ## Supply range and package fit Surface-mount assembly with a standard reflow profile works for the 48-TQFN — no special handling beyond the usual moisture sensitivity level (MSL) for a QFN. The part is ROHS3 compliant, meeting the latest EU restriction on hazardous substances for lead-free assembly.","metaTitle":"MAX14830ETM+T Quad UART, 128-Byte FIFO, 48-TQFN","metaDescription":"MAX14830ETM+T quad UART from Analog Devices, 128-byte FIFO per channel, RS232/RS485, 1.71-3.6V supply, 48-TQFN. Active, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"FIFO's":"128 Byte","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Internal Oscillator","Protocol":"RS232, RS485","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 3.6V","Number of Channels":"4, QUART","With Auto Flow Control":"Yes","Supplier Device Package":"48-TQFN (7x7)","With IrDA Encoder/Decoder":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.88","stockQuantity":22,"priceTiers":[{"qty":1,"price":"$20.88000","currency":"USD"},{"qty":10,"price":"$19.25400","currency":"USD"},{"qty":25,"price":"$18.38920","currency":"USD"},{"qty":100,"price":"$16.44200","currency":"USD"},{"qty":250,"price":"$15.68480","currency":"USD"},{"qty":500,"price":"$14.92760","currency":"USD"},{"qty":2500,"price":"$13.62954","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/98d93049842adc57e2ff66bfa81814a0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the FIFO depth on each channel?","answer":"Each of the four UART channels has a 128-byte FIFO, which buffers incoming and outgoing serial data to reduce CPU service interrupts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX14830ETMT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX14830ETMT 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}}