{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX7300AAX+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX7300AAXT","canonicalUrl":"https://icboms.com/analog-devices/MAX7300AAXT","factsUrl":"https://icboms.com/api/mcp/products/MAX7300AAX%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX7300AAX+T I²C GPIO Port Expander, 28 I/O, Push-Pull Output, 400 kHz Clock, 2.5V-5.5V Supply, 36-SSOP Package, Tape & Reel.","salesMarkdown":"## 28 I/O lines over a 2-wire bus The MAX7300AAX+T is a 28-port I²C GPIO expander from Analog Devices in a 36-SSOP package (7.50 mm width). It adds 28 push-pull I/O lines to a host microcontroller using only the SDA and SCL pins — critical when the MCU's own GPIO count is exhausted or the board layout cannot route more than a two-wire bus to a remote sensor cluster. Each I/O can source 4.5 mA or sink 10 mA, which is enough to drive a logic input or a low-current LED indicator without a discrete buffer transistor. The 400 kHz I²C clock sets the bus update rate — scanning all 28 inputs at 400 kHz yields a per-port latency of roughly 70 µs, acceptable for switch-debounce and status polling but not for high-speed encoder capture. ## Interrupt output and package fit A dedicated interrupt output (INT) pulls low when any input changes state, allowing the host processor to sleep between events — a power-saving feature for battery-operated sensor nodes or handheld instruments. The 36-SSOP package (0.295-inch body width) is a medium-density SMD form factor; the 0.65 mm pin pitch requires a standard PCB fab process, but the 7.50 mm width may conflict with narrow board edges or dense component placement near the connector row. It is ROHS3 compliant, meaning no restricted substances and no exemption expiry to track for EU or global compliance documentation.","metaTitle":"MAX7300AAX+T Analog Devices I²C GPIO Expander, 28 I/O","metaDescription":"MAX7300AAX+T I²C GPIO expander from Analog Devices. 28 I/O lines, 2.5-5.5V supply, -40°C to +125°C. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Number of I/O":"28","Package / Case":"36-BSOP (0.295\\\", 7.50mm Width)","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Interrupt Output":"Yes","Voltage - Supply":"2.5V ~ 5.5V","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"36-SSOP","Current - Output Source/Sink":"4.5mA, 10mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$12.62000","currency":"USD"},{"qty":10,"price":"$11.59800","currency":"USD"},{"qty":25,"price":"$11.11760","currency":"USD"},{"qty":100,"price":"$9.79550","currency":"USD"},{"qty":250,"price":"$9.31472","currency":"USD"},{"qty":500,"price":"$8.71378","currency":"USD"},{"qty":1000,"price":"$7.99264","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Analog Devices provide for MAX7300AAX+T?","answer":"Analog Devices provides ROHS3 compliance documentation for the MAX7300AAX+T. No UL, IEC, or REACH-specific certification is listed in the standard product data. The part is marked with the ADI logo and date-code, and the laser etch on the package should be consistent with ADI's font and plant code for the week of manufacture — a forensic check for gray-market parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX7300AAXT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX7300AAXT 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}}