{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCA8418RTWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TCA8418RTWR","canonicalUrl":"https://icboms.com/texas-instruments/TCA8418RTWR","factsUrl":"https://icboms.com/api/mcp/products/TCA8418RTWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TCA8418RTWR, I2C keypad controller, 1.65V-3.6V supply, 24-WQFN (4x4) exposed pad, surface mount, active production.","salesMarkdown":"## Keypad controller with I2C — what it does and where it fits The Texas Instruments TCA8418RTWR is a specialized interface IC that acts as a keypad controller, communicating over an I2C, 2-Wire Serial bus. It is designed for portable electronics such as PDAs, Portable Audio/Video players, and Smartphones, where a dedicated keypad scan engine offloads the main processor from polling rows and columns. Packaged in a 24-WQFN (4x4 mm) with an exposed pad, it is a surface-mount device. ## Lifecycle and sourcing — active, no LTB watch needed The TCA8418RTWR is listed as Active in production and ROHS3 compliant.","metaTitle":"TCA8418RTWR I2C Keypad Controller, 1.65V-3.6V, 24-WQFN","metaDescription":"TI TCA8418RTWR I2C keypad controller IC, 1.65V-3.6V supply, 24-WQFN package. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C, 2-Wire Serial","Applications":"PDA's, Portable Audio/Video, Smartphones","Mounting Type":"Surface Mount","Package / Case":"24-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.65V ~ 3.6V","Supplier Device Package":"24-WQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.78","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.78000","currency":"USD"},{"qty":10,"price":"$1.59600","currency":"USD"},{"qty":25,"price":"$1.50520","currency":"USD"},{"qty":100,"price":"$1.28240","currency":"USD"},{"qty":250,"price":"$1.20416","currency":"USD"},{"qty":500,"price":"$1.05364","currency":"USD"},{"qty":1000,"price":"$0.87302","currency":"USD"},{"qty":3000,"price":"$0.85200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/484b283fed100035187bbae99c84d955.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TCA8418RTWR compatible with I2C logic levels?","answer":"Yes. With a supply range of 1.65V to 3.6V, the TCA8418RTWR is compatible with both 1.8V and 3.3V I2C logic levels. No external level shifter is required when the host I2C master operates at the same VDD or uses open-drain pull-ups to the TCA8418's supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TCA8418RTWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TCA8418RTWR 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}}