{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4124LQI-443","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4124LQI-443","canonicalUrl":"https://icboms.com/infineon/CY8C4124LQI-443","factsUrl":"https://icboms.com/api/mcp/products/CY8C4124LQI-443","rawCanonicalId":null},"summary":{"shortDescription":"Infineon/Cypress PSoC® 4 CY8C4100 series, CY8C4124LQI-443, ARM® Cortex®-M0, 32-Bit Single-Core, 24 MHz, 34 I/O, 1.71 V supply, -40°C to 85°C.","salesMarkdown":"## What the 24 MHz Cortex-M0 and mixed-signal peripherals mean for your BOM The CY8C4124LQI-443 is a PSoC 4 MCU from Infineon (formerly Cypress) built around a 32-bit ARM Cortex-M0 core clocked at 24 MHz. This places it in the low-power, cost-optimized tier of the PSoC 4 family — adequate for sensor polling, touch interfaces, and control loops that don't need the 48 MHz headroom of the CY8C42xx siblings. The real value here is the integrated analog: an 8-channel 12-bit SAR ADC and two current-output IDACs, plus CapSense and segment LCD drive hardware. That means one chip handles touch sensing, analog measurement, and display control without external converters or a separate touch controller. ## CapSense and LCD drive — the peripherals that set this part apart Beyond the standard MCU blocks (UART, SPI, I²C, PWM, watchdog), this device includes Cypress's CapSense touch-sensing hardware and a segment LCD controller. CapSense eliminates the need for a dedicated touch IC in keypads, sliders, or proximity sensors — the MCU handles both the sensing and the application code. The LCD driver directly interfaces common segment glass panels, which is rare in a 34-pin MCU. If your design uses a small character or custom segment display, this part saves a display driver IC and the associated serial link. The 34 GPIOs are enough for a modest sensor array plus display segments, though you'll trade off I/O for LCD segment count. Infineon lists the CY8C4124LQI-443 as Active. No urgency to qualify a second source unless you want dual-sourcing for supply resilience. The closest parametric peer is the CY8C4245LQI-483, which doubles the core speed to 48 MHz while keeping the same package and peripheral set — a straightforward speed upgrade if your firmware later needs more throughput.","metaTitle":"Cypress CY8C4124LQI-443 PSoC 4 ARM Cortex-M0 MCU, 24 MHz","metaDescription":"Infineon/Cypress CY8C4124LQI-443 PSoC 4 MCU: ARM Cortex-M0 at 24 MHz, 34 I/O, 12-bit SAR ADC, dual IDACs, CapSense, LCD drive.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC® 4 CY8C4100","has_mpn":"CY8C4124","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":"34","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 8x12b SAR; D/A 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":"$2.04","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2b4f8dee9139494317cb4172e8a50611.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C4124LQI-443/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4124LQI-443","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4124LQI-443 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}}