{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4125LQI-S423","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4125LQI-S423","canonicalUrl":"https://icboms.com/infineon/CY8C4125LQI-S423","factsUrl":"https://icboms.com/api/mcp/products/CY8C4125LQI-S423","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 4 CY8C4100S series ARM® Cortex®-M0+ MCU, 32-bit, 24 MHz, 32 KB Flash, 4K x 8 RAM, 34 I/O, 40-UFQFN Exposed Pad, -40°C to 85°C.","salesMarkdown":"## What this PSoC 4 brings to a BOM line The Infineon CY8C4125LQI-S423 is a 32-bit ARM Cortex-M0+ MCU from the PSoC 4 family, clocked at 24 MHz with 32 KB of Flash and 4K x 8 of SRAM. Its standout feature is the integrated CapSense block — Infineon's capacitive touch-sensing engine — alongside a 16-channel 10-bit slope ADC, a 16-channel 12-bit SAR ADC, and two IDAC outputs. ## CapSense and analog — the single-chip touch interface The CapSense peripheral is Infineon's own capacitive touch-sensing IP, designed for moisture-tolerant button, slider, and proximity sensing. The dual ADC architecture — a 10-bit slope ADC for low-power scanning and a 12-bit SAR ADC for higher-resolution measurements — lets the designer trade off speed versus precision without adding an external converter. ## Temperature grade and deployment environment Rated for -40°C to 85°C (TA), this part covers industrial enclosures, outdoor telecom cabinets, and commercial appliances. It is not AEC-Q100 qualified, so it is not specified for under-hood automotive or engine-bay environments. For a quality-doc-control engineer verifying a replacement part for a production line, the temperature grade matches the original spec — no derating needed for a panel that lives in a conditioned factory space. ## Lifecycle and sourcing reality The CY8C4125LQI-S423 carries an Active lifecycle status from Infineon. That means no last-time-buy risk and continued manufacturing support for new designs.","metaTitle":"Infineon CY8C4125LQI-S423 PSoC 4 MCU, 24 MHz, 32 KB Flash","metaDescription":"Infineon CY8C4125LQI-S423 PSoC 4 ARM Cortex-M0+ MCU: 24 MHz, 32 KB Flash, 4K x 8 RAM, 34 I/O, CapSense, dual ADC, -40 to 85°C, 40-QFN.","metaKeywords":null},"attributes":{"series":"PSOC® 4 CY8C4100S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Speed":"24MHz","Series":"PSOC® 4 CY8C4100S","Package":"Tray","RAM Size":"4K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT","Connectivity":"I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"34","Core Processor":"ARM® Cortex®-M0+","Package / Case":"40-UFQFN Exposed Pad","Data Converters":"A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"40-QFN (6x6)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.05000","currency":"USD"},{"qty":10,"price":"$2.74000","currency":"USD"},{"qty":25,"price":"$2.59080","currency":"USD"},{"qty":80,"price":"$2.24525","currency":"USD"},{"qty":230,"price":"$2.13009","currency":"USD"},{"qty":490,"price":"$1.91133","currency":"USD"},{"qty":980,"price":"$1.61196","currency":"USD"},{"qty":2450,"price":"$1.53136","currency":"USD"},{"qty":4900,"price":"$1.47379","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1ace7f65017fc7aa7d4f2258d7a89bb2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is CY8C4125LQI-S423's listed speed?","answer":"The core is rated at 24 MHz. That is the maximum clock frequency for the ARM Cortex-M0+ in this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4125LQI-S423","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4125LQI-S423 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}}