{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCF8584T/2,512","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"PCF8584T-2512","canonicalUrl":"https://icboms.com/nxp/PCF8584T-2512","factsUrl":"https://icboms.com/api/mcp/products/PCF8584T%2F2%2C512","rawCanonicalId":null},"summary":{"shortDescription":"NXP PCF8584T/2,512 I2C bus controller, parallel interface, 1.5mA supply current, 4.5V to 5.5V supply range, -40°C to 85°C operating temperature, 20-SOIC package, Tube.","salesMarkdown":"## I2C bus controller with a parallel port — what it bridges The NXP PCF8584T/2,512 is an I2C bus controller that translates between a standard parallel microprocessor interface and the I2C serial bus. It handles all I2C bus timing and protocol, including clock generation, start/stop conditions, and arbitration, so the host processor only needs to read and write a few registers. The parallel interface makes it a direct fit for legacy 8-bit or 16-bit microcontrollers that lack a built-in I2C peripheral, or for adding a second I2C bus to an existing system without redesigning the core logic. ## Supply and temperature — what the ratings mean for the BOM The 4.5V to 5.5V supply range ties this part to 5V logic families. It will not run from a 3.3V rail, so if your system has moved to lower voltages, you will need a level shifter or a separate 5V supply for this controller. The 1.5mA supply current is modest — fine for always-on buses in industrial controllers or set-top boxes, but not the lowest-power option for battery gear. The -40°C to 85°C industrial temperature range covers factory-floor enclosures, outdoor telecom cabinets, and automotive cabin applications without needing a mil-grade part. ## Lifecycle and sourcing — still an active line The PCF8584T/2,512 carries an Active product status and is ROHS3 compliant. NXP has not issued an EOL notice for this order code, so it remains a standard catalog item for new designs and production replenishment. Availability is confirmed through independent distribution; current pricing and lead time are quoted to order against an RFQ. No direct replacement or second-source alternate is listed in the official records, so dual-sourcing will require a pin-compatible part from another vendor — something to verify against your specific layout. ## Package and handling — 20-SOIC wide-body The wide SOIC footprint is common for I2C controllers and interface ICs, and it is straightforward to hand-assemble or reflow. Standard MSL precautions apply — store the tubes in a dry environment if the seal is broken, and bake before reflow if the floor-life window has been exceeded.","metaTitle":"NXP PCF8584T/2,512 I2C Bus Controller, 20-SOIC","metaDescription":"NXP PCF8584T/2,512 I2C bus controller with parallel interface, 1.5mA supply, 4.5V-5.5V, -40°C to 85°C, 20-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Controller","Protocol":"I2C","Interface":"Parallel","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"1.5mA","Voltage - Supply":"4.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"20-SO"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.77","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.77000","currency":"USD"},{"qty":10,"price":"$6.11200","currency":"USD"},{"qty":38,"price":"$5.82763","currency":"USD"},{"qty":114,"price":"$5.06009","currency":"USD"},{"qty":266,"price":"$4.83267","currency":"USD"},{"qty":532,"price":"$4.40626","currency":"USD"},{"qty":1026,"price":"$3.83771","currency":"USD"},{"qty":2508,"price":"$3.69557","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2dec10cbddf876d0e4c3bc516cf72b95.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PCF8584T used for?","answer":"The PCF8584T is an I2C bus controller with a parallel microprocessor interface. It is used to add I2C bus capability to systems whose host processor lacks a built-in I2C peripheral, or to offload I2C timing and protocol handling from the main CPU. Typical applications include industrial control, telecom infrastructure, and embedded systems that need to communicate with I2C sensors, EEPROMs, or other peripherals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/PCF8584T-2512","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/PCF8584T-2512 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}}