{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9535D,112","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"PCA9535D~6112","canonicalUrl":"https://icboms.com/nxp/PCA9535D~6112","factsUrl":"https://icboms.com/api/mcp/products/PCA9535D%2C112","rawCanonicalId":null},"summary":{"shortDescription":"NXP PCA9535D,112 16-bit I²C/SMBus I/O expander, 400 kHz clock, 2.3V–5.5V supply, push-pull outputs, interrupt output, 10mA source / 25mA sink, -40°C to 85°C, 24-SOIC package.","salesMarkdown":"The NXP PCA9535D,112 is a 16-bit I²C-bus and SMBus I/O expander in a 24-SOIC package. It adds sixteen push-pull GPIOs to a microcontroller using only two bus lines (SDA/SCL), with a clock frequency of 400 kHz. An interrupt output (INT) signals the host when an input changes state, so the firmware doesn't have to poll the bus at a fixed interval. Each I/O can source 10 mA or sink 25 mA, enough to drive an LED directly or switch a small-signal relay through a transistor. The push-pull output stage eliminates the need for external pull-up resistors on outputs, though inputs still require pull-ups if the external driver is open-drain. The POR (power-on reset) feature ensures all I/Os default to inputs at power-up, preventing unintended output states during supply ramp. ## Industrial temperature rating — where it fits","metaTitle":"NXP PCA9535D,112 16-bit I²C I/O Expander, 400 kHz, 24-SOIC","metaDescription":"NXP PCA9535D,112 16-bit I²C/SMBus I/O expander with interrupt output, 2.3V–5.5V supply, 400 kHz clock, push-pull outputs, 10mA source/25mA sink. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tube","Features":"POR","Interface":"I²C, SMBus","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Number of I/O":"16","Package / Case":"24-SOIC (0.295\\\", 7.50mm Width)","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Interrupt Output":"Yes","Voltage - Supply":"2.3V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"24-SO","Current - Output Source/Sink":"10mA, 25mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.46","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.46000","currency":"USD"},{"qty":10,"price":"$2.20800","currency":"USD"},{"qty":25,"price":"$2.08280","currency":"USD"},{"qty":100,"price":"$1.77460","currency":"USD"},{"qty":250,"price":"$1.66628","currency":"USD"},{"qty":500,"price":"$1.45802","currency":"USD"},{"qty":1000,"price":"$1.20807","currency":"USD"},{"qty":2500,"price":"$1.12475","currency":"USD"},{"qty":5000,"price":"$1.08309","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/074eaf3e74eccaf4813db0e18123879d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between PCA9535 and PCA9535D?","answer":"The 'D' suffix selects the SOIC footprint, which is easier to hand-solder and inspect than a QFN."},{"question":"Can PCA9535D be used with 5V logic?","answer":"Yes. The I²C bus pins are 5 V tolerant as well, allowing connection to a 5 V master without external level shifting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/PCA9535D~6112","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/PCA9535D~6112 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}}