{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4146LQI-S422T","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4146LQI-S422T","canonicalUrl":"https://icboms.com/infineon/CY8C4146LQI-S422T","factsUrl":"https://icboms.com/api/mcp/products/CY8C4146LQI-S422T","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies PSoC® 4 CY8C4100S ARM Cortex-M0+ MCU, 48MHz, 64KB Flash, 8KB RAM, 27 I/O, CapSense, 32-UFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## 48MHz Cortex-M0+ with on-chip CapSense and mixed-signal The CY8C4146LQI-S422T is a PSoC 4 ARM Cortex-M0+ MCU clocked at 48MHz, with 64KB Flash and 8KB RAM — enough headroom for a touch-sense UI, sensor fusion, or motor-control loop without external memory. On-chip CapSense and LCD drive eliminate the external touch controller and segment-driver IC, saving BOM cost and board area in human-machine interface designs. ## Mixed-signal front-end and serial connectivity The ADC subsystem pairs a 16-channel 10-bit slope converter with a 16-channel 12-bit SAR converter — the slope ADC handles slow, high-resolution measurements (temperature, battery voltage) while the SAR ADC captures faster signals (current sense, audio envelope) without contention. Two IDAC outputs provide programmable current sources for sensor excitation or closed-loop control — useful for driving an RTD or biasing a photodiode without an external DAC.","metaTitle":"CY8C4146LQI-S422T Infineon PSoC 4 MCU, 48MHz, 64KB Flash","metaDescription":"CY8C4146LQI-S422T PSoC 4 ARM Cortex-M0+ MCU, 48MHz, 64KB Flash, 8KB RAM, CapSense, 1.71-5.5V, -40 to 85°C. Active production, ROHS3. Request a quote.","metaKeywords":null},"attributes":{"series":"PSOC® 4 CY8C4100S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"48MHz","Series":"PSOC® 4 CY8C4100S","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"27","Core Processor":"ARM® Cortex®-M0+","Package / Case":"32-UFQFN Exposed Pad","Data Converters":"A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC","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":"32-QFN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.77","stockQuantity":14,"priceTiers":[{"qty":1,"price":"$3.77000","currency":"USD"},{"qty":10,"price":"$3.38900","currency":"USD"},{"qty":25,"price":"$3.20440","currency":"USD"},{"qty":100,"price":"$2.77700","currency":"USD"},{"qty":250,"price":"$2.63460","currency":"USD"},{"qty":500,"price":"$2.36400","currency":"USD"},{"qty":1000,"price":"$1.99374","currency":"USD"},{"qty":2500,"price":"$1.89405","currency":"USD"},{"qty":5000,"price":"$1.82285","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1ace7f65017fc7aa7d4f2258d7a89bb2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CY8C4146LQI-S422T in the PSoC 4 family?","answer":"Within the same CY8C4100S series, the CY8C4146LQI-S422 (non-tape-and-reel variant) shares the same 32-QFN package, 48MHz core, 64KB Flash, and 8KB RAM."},{"question":"What compliance documentation does Infineon provide for CY8C4146LQI-S422T?","answer":"Infineon provides a ROHS3 compliance certificate and a REACH declaration. The part is free of the six original RoHS substances plus DEHP, BBP, DBP, and DIBP. No UL or IEC certification is listed in the available documentation."},{"question":"What is CY8C4146LQI-S422T's listed speed?","answer":"The core runs at 48MHz — the Cortex-M0+ pipeline delivers 0.95 DMIPS/MHz, so the effective throughput is about 45 DMIPS at full clock, assuming zero flash wait states."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4146LQI-S422T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4146LQI-S422T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}