{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9670PW,118","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"PCA9670PW118","canonicalUrl":"https://icboms.com/nxp/PCA9670PW118","factsUrl":"https://icboms.com/api/mcp/products/PCA9670PW%2C118","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors PCA9670PW,118 I2C I/O expander, 8 I/O, 1 MHz clock, 2.3V-5.5V supply, -40°C to 85°C, 16-TSSOP, Push-Pull output, POR, Tape & Reel.","salesMarkdown":"## 1 MHz I2C I/O expander with POR The NXP PCA9670PW,118 is an 8-bit I2C I/O expander clocked at 1 MHz, providing eight push-pull output lines for general-purpose digital expansion in embedded systems. ## Output drive and interrupt handling Each I/O can sink 25 mA or source 100 µA — the sink current is enough to drive an LED directly, but the source side is weak, so pull-ups or external drivers are needed for high-side loads. There is no interrupt output pin on this expander — the host must poll the I2C bus to detect input changes, which matters for latency-sensitive applications where an interrupt-driven part like the PCA9671 would be a better fit. The built-in Power-On Reset (POR) ensures the outputs default to a known state after power-up, eliminating the need for an external reset supervisor in many designs.","metaTitle":"NXP PCA9670PW,118 I2C I/O Expander, 1 MHz, 8 I/O, 16-TSSOP","metaDescription":"NXP PCA9670PW,118 I2C I/O expander, 8 I/O, 1 MHz clock, 2.3V-5.5V supply, -40°C to 85°C, 16-TSSOP. Active lifecycle, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"POR","Interface":"I²C","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Number of I/O":"8","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Clock Frequency":"1 MHz","lifecycle_stage":"eol_hot","Interrupt Output":"No","Voltage - Supply":"2.3V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Current - Output Source/Sink":"100µA, 25mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.64","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.64000","currency":"USD"},{"qty":10,"price":"$1.47200","currency":"USD"},{"qty":25,"price":"$1.38880","currency":"USD"},{"qty":100,"price":"$1.18320","currency":"USD"},{"qty":250,"price":"$1.11100","currency":"USD"},{"qty":500,"price":"$0.97212","currency":"USD"},{"qty":1000,"price":"$0.80548","currency":"USD"},{"qty":2500,"price":"$0.74992","currency":"USD"},{"qty":5000,"price":"$0.72215","currency":"USD"},{"qty":12500,"price":"$0.69438","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/794e3a7d80416f6d830a32d570be4f78.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does PCA9670PW have an interrupt output?","answer":"No — this part does not include an interrupt output pin. The host must poll the I2C bus to detect input changes. If interrupt-driven operation is required, consider the PCA9671 which adds an interrupt output."},{"question":"What is the difference between PCA9670 and PCA9671?","answer":"The PCA9670 has no interrupt output, while the PCA9671 adds an interrupt output pin. Both are 8-bit I2C I/O expanders with the same 1 MHz clock, supply range, and push-pull outputs — the interrupt is the deciding factor for latency-sensitive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/PCA9670PW118","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/PCA9670PW118 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}