{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4124LQI-S433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4124LQI-S433","canonicalUrl":"https://icboms.com/infineon/CY8C4124LQI-S433","factsUrl":"https://icboms.com/api/mcp/products/CY8C4124LQI-S433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 4 CY8C4100S series, CY8C4124, ARM® Cortex®-M0+ 32-Bit Single-Core, 24 MHz, 34 I/O, FLASH, -40°C to 85°C (TA), Surface Mount.","salesMarkdown":"## Active production, CapSense on board — the PSoC 4 value-line MCU The Infineon CY8C4124LQI-S433 is a PSoC® 4 CY8C4100S series microcontroller built around an ARM® Cortex®-M0+ core running at 24 MHz. It packs 34 general-purpose I/O, an internal oscillator, and a dense mixed-signal front end: 16-channel 10-bit Slope ADC, 16-channel 12-bit SAR ADC, and two IDAC outputs. This is the value-line tier of the PSoC 4 family, sized for cost-sensitive human-machine interface and sensor-fusion applications where the analog integration saves external components. ## 24 MHz core — where it fits against the 48 MHz siblings The 24 MHz fuse speed is the primary performance differentiator within the PSoC 4 family. The CY8C4245LQI-483 runs at 48 MHz with the same Cortex-M0 core and 34 I/O count, but swaps the ADC mix to 8x12b SAR only — no 10b Slope channels. If your application needs the 16-channel 10b Slope ADC for ratiometric sensor scanning or the extra SAR channels, the CY8C4124LQI-S433 is the correct fit. The 48 MHz parts handle higher-throughput control loops or faster communication polling; the 24 MHz parts save on BOM cost and power for touch, display, and low-speed sensor tasks. ## Package and supply — what the board sees Internal oscillator means no external crystal is required for the core clock, though the I²C and UART peripherals can use an external reference if tighter timing is needed. The 34 I/O count includes the CapSense and LCD drive pins, so budget those against your touch-channel and segment count before committing the footprint.","metaTitle":"Infineon CY8C4124LQI-S433 PSoC 4 ARM Cortex-M0+, 24 MHz","metaDescription":"Infineon CY8C4124LQI-S433 PSoC 4 MCU, ARM Cortex-M0+ at 24 MHz, 34 I/O, CapSense, LCD drive, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC® 4 CY8C4100S","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":"Tray","Number Of I/O":"34","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 16x10b Slope, 16x12b 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":"$2.24","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1ace7f65017fc7aa7d4f2258d7a89bb2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C4124LQI-S433/alternatives.json"},"ai":{"faq":[{"question":"Does CY8C4124LQI-S433 require an external oscillator?","answer":"No. The device has an internal oscillator and does not require an external crystal for the core clock. The I²C, SPI, and UART peripherals can operate from the internal oscillator, though an external reference can be used if tighter timing accuracy is needed for protocols like IrDA or SmartCard."},{"question":"What is the difference between CY8C4124LQI-S433 and CY8C4245LQI-483?","answer":"The CY8C4245LQI-483 runs at 48 MHz (double the 24 MHz of the CY8C4124LQI-S433) and uses an 8-channel 12-bit SAR ADC only, while the CY8C4124LQI-S433 provides a 16-channel 10-bit Slope ADC plus a 16-channel 12-bit SAR ADC and two IDAC outputs. The choice depends on whether you need the higher core speed or the denser analog front end."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4124LQI-S433","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4124LQI-S433 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}}