{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3245AXI-166","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3245AXI-166","canonicalUrl":"https://icboms.com/infineon/CY8C3245AXI-166","factsUrl":"https://icboms.com/api/mcp/products/CY8C3245AXI-166","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSOC® 3 CY8C32xx series, CY8C3245AXI-166, 8-bit 8051 MCU, 50 MHz, 32 KB Flash, 4K x 8 RAM, 1K x 8 EEPROM, 62 I/O, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## 50 MHz 8051 — what that means for throughput The 50 MHz clock on an 8051 core handles a real-time control loop (PWM updates, ADC reads, CapSense scanning) and a USB stack without a second processor. ## CapSense and analog — the BOM consolidation play The 16-channel 12-bit ADC and the on-chip CapSense peripheral eliminate the need for an external touch controller and a separate ADC in many panel designs. The single 8-bit DAC is useful for generating an analog reference or a simple signal output. For a membrane-keypad or proximity-sensing interface, this part can replace a dedicated touch IC plus a small MCU — worth the layout review if you are counting pennies per board. ## RoHS note — non-compliant, plan your exemption This part is marked RoHS non-compliant. If your assembly line or end-market requires RoHS exemption documentation, factor that into the BOM review. For legacy designs or military/industrial builds that already accept lead-bearing solder, it is a non-issue.","metaTitle":"CY8C3245AXI-166 PSOC 3 8-bit MCU, 50 MHz, 32 KB Flash","metaDescription":"CY8C3245AXI-166 PSOC 3 8051 MCU at 50 MHz with 32 KB Flash, 4K x 8 RAM, CapSense, USB, and wide 1.71V-5.5V supply. Active lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":"PSOC® 3 CY8C32xx","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"50MHz","Series":"PSOC® 3 CY8C32xx","Package":"Tray","RAM Size":"4K x 8","Core Size":"8-Bit","EEPROM Size":"1K x 8","Peripherals":"CapSense, DMA, POR, PWM, WDT","Connectivity":"EBI/EMI, I²C, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"62","Core Processor":"8051","Package / Case":"100-LQFP","Data Converters":"A/D 16x12b; D/A 1x8b","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":"100-TQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.66000","currency":"USD"},{"qty":10,"price":"$10.53200","currency":"USD"},{"qty":25,"price":"$10.04200","currency":"USD"},{"qty":90,"price":"$8.71933","currency":"USD"},{"qty":270,"price":"$8.32744","currency":"USD"},{"qty":450,"price":"$7.59267","currency":"USD"},{"qty":990,"price":"$6.61298","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ca1be62407dfa0bc41d1655ecfdd98f1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for CY8C3245AXI-166?","answer":"The CY8C4245LQI-483 is a PSOC 4 device with an ARM Cortex-M0 core running at 48 MHz, but it is not pin-compatible (different package and pinout) and has a different peripheral set. For a drop-in replacement, stick with the PSOC 3 family; the CY8C3245AXI-166 has no direct second-source from another manufacturer."},{"question":"Will CY8C3245AXI-166 drop into a board designed for CY8C4245LQI-483?","answer":"No. The CY8C3245AXI-166 is a 100-TQFP package, while the CY8C4245LQI-483 is a 48-QFN. The pinouts, supply voltages, and peripheral maps are completely different — a board re-spin is required."},{"question":"What compliance documentation does Infineon provide for CY8C3245AXI-166?","answer":"Infineon provides a datasheet and the part is marked RoHS non-compliant. For REACH, UL, or IEC certificates, check the Infineon product page or request them through your distributor — they are not listed in the standard component record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3245AXI-166","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3245AXI-166 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}}