{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCA6408APWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TCA6408APWR","canonicalUrl":"https://icboms.com/texas-instruments/TCA6408APWR","factsUrl":"https://icboms.com/api/mcp/products/TCA6408APWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TCA6408APWR, 8-bit I²C/SMBus I/O expander, 400 kHz clock, push-pull outputs, 1.65 V–5.5 V supply, -40°C to 85°C, 16-TSSOP package.","salesMarkdown":"## 8-bit I²C GPIO expander with POR and interrupt It provides eight push-pull output or input pins, a power-on reset (POR) feature that initializes the outputs to a known state, and a dedicated interrupt output that signals the host when an input changes. The 400 kHz I²C clock is standard for this class of expander and matches most MCU I²C peripherals. The POR feature means the outputs come up in a defined state after power-on, which avoids glitches on connected loads during startup. ## Lifecycle and sourcing posture TI lists the TCA6408APWR as Active. The part is ROHS3 compliant.","metaTitle":"TCA6408APWR I²C I/O Expander, 8-Bit, 1.65V–5.5V, 16-TSSOP","metaDescription":"Texas Instruments TCA6408APWR 8-bit I²C/SMBus I/O expander. 400 kHz clock, push-pull outputs, interrupt output, 1.65 V–5.5 V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"POR","Interface":"I²C, SMBus","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Number of I/O":"8","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Interrupt Output":"Yes","Voltage - Supply":"1.65V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Current - Output Source/Sink":"10mA, 25mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":10,"price":"$1.41000","currency":"USD"},{"qty":25,"price":"$1.33840","currency":"USD"},{"qty":100,"price":"$1.09950","currency":"USD"},{"qty":250,"price":"$1.02784","currency":"USD"},{"qty":500,"price":"$0.90832","currency":"USD"},{"qty":1000,"price":"$0.71709","currency":"USD"},{"qty":2000,"price":"$0.67650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3657942c555b5ae3e183b6bd188acdaa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does TCA6408APWR have an interrupt output?","answer":"Yes, it has a dedicated interrupt output that asserts when any input pin changes state, allowing the host MCU to sleep until an event occurs."},{"question":"What is the TCA6408APWR equivalent or replacement?","answer":"For a direct 8-bit push-pull replacement, stay within the TCA6408A family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TCA6408APWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TCA6408APWR 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}}