{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4246AXI-M445","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4246AXI-M445","canonicalUrl":"https://icboms.com/infineon/CY8C4246AXI-M445","factsUrl":"https://icboms.com/api/mcp/products/CY8C4246AXI-M445","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 4 CY8C42xx - M series, CY8C4246AXI-M445, ARM® Cortex®-M0, 32-Bit, 48MHz, 64KB Flash, 8K x 8 RAM, 51 I/O, 1.71V ~ 5.5V, -40°C ~ 85°C, 64-LQFP, Tray.","salesMarkdown":"## Package and mounting The headline feature here is the integrated CapSense and SmartSense peripheral — no external touch controller needed, and the auto-tuning handles the sensor tuning so you don't have to tweak thresholds per board. Supply range spans 1.71 V to 5.5 V, so you can run it off a single Li-ion cell or a 5 V rail without a separate regulator. ## CapSense and SmartSense — the reason you pick this over a plain Cortex-M0 The CY8C4246AXI-M445 includes a capacitive-sensing block with SmartSense, listed among its peripherals alongside Brown-out Detect/Reset, LCD drive, LVD, POR, PWM, and WDT. SmartSense auto-calibrates the touch sensors across temperature, humidity, and overlay thickness — you don't need to run a tuning routine on every production unit. That saves firmware engineering time and field-support calls. For a touch-interface product like a control panel or a smart appliance, this MCU replaces a separate touch controller plus a general-purpose MCU. The 16-channel 12-bit ADC (A/D 16x12b) handles analog inputs like slider position or ambient light sensing on the same die. ## 64-LQFP — hand-solderable, field-swappable The 64-LQFP package (14x14 mm body) is a standard QFP with 0.8 mm pitch. No BGA rework station needed — you can swap it on site with a hot-air pencil or even a soldering iron if you're careful. The 51 I/O are all on the perimeter, so probing and rework are straightforward. Mounting is surface-mount, as expected. No last-time-buy notice, no end-of-life announcement. ROHS3 compliant.","metaTitle":"CY8C4246AXI-M445 PSoC 4 MCU, 48MHz ARM Cortex-M0, 64KB Flash","metaDescription":"Infineon CY8C4246AXI-M445 is a 32-bit ARM Cortex-M0 MCU at 48MHz with 64KB Flash, 8Kx8 RAM, CapSense, and 51 I/O in 64-TQFP.","metaKeywords":null},"attributes":{"series":"PSOC® 4 CY8C42xx - M","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Speed":"48MHz","Series":"PSOC® 4 CY8C42xx - M","Package":"Tray","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, Cap Sense, LCD, LVD, POR, PWM, SmartSense, WDT","Connectivity":"I²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"51","Core Processor":"ARM® Cortex®-M0","Package / Case":"64-LQFP","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-TQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.11000","currency":"USD"},{"qty":10,"price":"$5.51600","currency":"USD"},{"qty":25,"price":"$5.25920","currency":"USD"},{"qty":90,"price":"$4.56644","currency":"USD"},{"qty":270,"price":"$4.36119","currency":"USD"},{"qty":450,"price":"$3.97638","currency":"USD"},{"qty":990,"price":"$3.46329","currency":"USD"},{"qty":2430,"price":"$3.33502","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/48bc78d700249b87366b586095848ed2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does CY8C4246AXI-M445 support capacitive sensing?","answer":"Yes, it includes CapSense and SmartSense peripherals, so you can implement touch buttons, sliders, and proximity sensing without an external controller."},{"question":"What is the closest functional alternative to CY8C4246AXI-M445?","answer":"The CY8C4245LQI-483 is a close sibling — same 48 MHz Cortex-M0 core, same peripheral set, but in a 48-QFN package with 34 I/O instead of 51. The CY8C4246AXI-M445 offers more I/O and the larger 64-LQFP package, which is easier to hand-solder."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4246AXI-M445","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4246AXI-M445 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}}