{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCF8575RGER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCF8575RGER","canonicalUrl":"https://icboms.com/texas-instruments/PCF8575RGER","factsUrl":"https://icboms.com/api/mcp/products/PCF8575RGER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCF8575RGER I²C/SMBus 16-bit I/O expander, 400 kHz clock, push-pull outputs, 4.5-5.5 V supply, -40 to 85°C, 24-VQFN (4x4 mm), Tape & Reel.","salesMarkdown":"## 16-bit I/O expansion over two wires The PCF8575RGER is a 16-bit I/O expander from Texas Instruments that adds 16 general-purpose I/O pins to any I²C or SMBus host — no extra GPIO bank needed on the MCU. Communication runs at up to 400 kHz on the I²C bus, which keeps the pin count on the controller side to just SDA and SCL while the expander handles the parallel I/O locally. Each I/O is push-pull, sourcing 1 mA and sinking 25 mA per pin — enough to drive LEDs directly or interface with logic-level loads without external buffers. ## Package and board-fit for dense layouts Housed in a 24-VFQFN with exposed pad (4x4 mm body per the supplier device package 24-VQFN), the PCF8575RGER suits space-constrained designs where every square millimeter counts. ## Power-on reset and interrupt for deterministic control A built-in power-on reset (POR) circuit initialises all I/O registers to a known state at power-up, eliminating the need for a software reset sequence after each supply cycle. An interrupt output pin (INT) signals the host when any input changes state — the firmware can sleep the main controller and wake only on a pin transition, reducing average current draw in battery-powered or low-power systems. ## Active production and sourcing posture For volume commitments, a multi-year supply agreement can be structured through the independent distribution desk.","metaTitle":"PCF8575RGER I²C I/O Expander, 16-bit, 24-VQFN","metaDescription":"Texas Instruments PCF8575RGER I²C/SMBus 16-bit I/O expander, 400 kHz, push-pull, -40 to 85°C, 24-VQFN. Active, RoHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"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":"16","Package / Case":"24-VFQFN Exposed Pad","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Interrupt Output":"Yes","Voltage - Supply":"4.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"24-VQFN (4x4)","Current - Output Source/Sink":"1mA, 25mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.87","priceTiers":[{"qty":1,"price":"$2.87000","currency":"USD"},{"qty":10,"price":"$2.57600","currency":"USD"},{"qty":25,"price":"$2.43520","currency":"USD"},{"qty":100,"price":"$2.11040","currency":"USD"},{"qty":250,"price":"$2.00220","currency":"USD"},{"qty":500,"price":"$1.79656","currency":"USD"},{"qty":1000,"price":"$1.53150","currency":"USD"},{"qty":3000,"price":"$1.53150","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/64688a248d98eb99d4ace946d88b6d3a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/PCF8575RGER/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCF8575RGER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCF8575RGER when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}