{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4125AXI-M445","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4125AXI-M445","canonicalUrl":"https://icboms.com/infineon/CY8C4125AXI-M445","factsUrl":"https://icboms.com/api/mcp/products/CY8C4125AXI-M445","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 4 CY8C41xx - M series, CY8C4125AXI-M445, ARM® Cortex®-M0, 32-Bit Single-Core, 24 MHz, 32 KB Flash, 1.71 V supply, 51 I/O, -40°C to 85°C, 64-TQFP.","salesMarkdown":"What sets it apart from a plain microcontroller is the programmable analog front-end: a 16-channel 12-bit SAR ADC and two IDACs (current-output DACs) that let you handle sensor conditioning, capacitive touch, and current-loop control without external converters. The part also integrates CapSense — Infineon's capacitive touch-sensing engine — and a direct LCD segment drive controller, so a UI panel with touch buttons and a small display can run off this single chip. ## Supply voltage and temperature — where it fits No AEC-Q100 qualification is listed, so automotive under-hood or chassis-domain deployment would need a different PSoC variant from the automotive-rated line. ## I/O and connectivity — 51 pins with serial flexibility With 51 general-purpose I/O pins in a 64-TQFP package, this MCU has enough headroom for a medium-complexity board — say a sensor hub with a parallel LCD, a few serial peripherals, and touch buttons. That means you can route the serial interface to any pin, which simplifies PCB layout when you are squeezing traces around a display connector or a header. ## Lifecycle — no EOL worry for new designs If you need a second-source option for dual-supply resilience, the CY8C4245LQI-483 (48 MHz, 32 KB Flash, 34 I/O, QFN package) is a pin-compatible alternative within the same PSoC 4 family — though it runs at a higher core speed and drops the I/O count.","metaTitle":"Infineon CY8C4125AXI-M445 PSoC 4 MCU, ARM Cortex-M0, 24 MHz","metaDescription":"Infineon CY8C4125AXI-M445 PSoC 4 MCU: ARM Cortex-M0 at 24 MHz, 32 KB Flash, 16x12b SAR ADC, dual IDAC, CapSense, 51 I/O, -40°C to 85°C, 64-TQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC® 4 CY8C41xx - M","has_mpn":"CY8C4125","cpu_core":"ARM® Cortex®-M0","frame_size":"32-Bit Single-Core","fuse_speed":"24 MHz","connectivity":"I²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART","package_type":"Bulk","Number Of I/O":"51","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 16x12b SAR; 2xIDAC","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","peripheral_types":"Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT","supply_voltage_v":"1.71","Program Memory Type":"FLASH","Operating Temperature High":"-40°C to 85°C (TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.65","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c73526f7928ad498916174d427c0e08f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C4125AXI-M445/alternatives.json"},"ai":{"faq":[{"question":"Can CY8C4125AXI-M445 be replaced by CY8C4126AXI-M445?","answer":"The CY8C4126AXI-M445 is the same die with 64 KB Flash instead of 32 KB, in the same 64-TQFP package. It is a drop-in upgrade for designs needing more code space — no PCB change required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4125AXI-M445","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4125AXI-M445 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}}