{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3445LTI-078","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3445LTI-078","canonicalUrl":"https://icboms.com/infineon/CY8C3445LTI-078","factsUrl":"https://icboms.com/api/mcp/products/CY8C3445LTI-078","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 3 CY8C34xx series, CY8C3445, 8-Bit 8051 MCU, 50 MHz, 32KB FLASH, 48-QFN, 25 I/O, -40°C to 85°C.","salesMarkdown":"## 8051 core at 50 MHz — what that buys you in a mixed-signal controller The CY8C3445LTI-078 is an Infineon PSoC 3 device built around an 8051 CPU core running at 50 MHz. This is the part you pick when a design needs a single-chip solution for sensor measurement, capacitive touch buttons, and a small display — without adding separate ADC, touch controller, and LCD driver ICs. ## Industrial temperature range — fits factory-floor and outdoor gear The internal oscillator keeps the clock running without an external crystal, saving two pins and a few cents on the BOM. ## Active lifecycle — still a current-production part For a repair bench or a new design, this means you can source it without worrying about a looming EOL.","metaTitle":"CY8C3445LTI-078 PSoC 3 MCU, 8051 50 MHz, 32KB Flash, 48-QFN","metaDescription":"Infineon CY8C3445LTI-078 PSoC 3 8-bit MCU with 8051 core at 50 MHz, 32KB Flash, 25 I/O, 16x12b ADC, CapSense. Active, industrial temp.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC® 3 CY8C34xx","has_mpn":"CY8C3445","cpu_core":"8051","frame_size":"8-Bit","fuse_speed":"50 MHz","connectivity":"EBI/EMI, I²C, LINbus, SPI, UART/USART","package_type":"Bulk","Number Of I/O":"25","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 16x12b; D/A 2x8b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","peripheral_types":"CapSense, DMA, LCD, 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":"$7.49","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/033a7647e9725ad6556608a72e8ec755.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C3445LTI-078/alternatives.json"},"ai":{"faq":[{"question":"What chips are equivalent to CY8C3445LTI-078?","answer":"The CY8C29466-24PVXI is an older PSoC 1 part with an M8C core at 24 MHz and 32 KB Flash, but it runs on a 3.0 V supply and lacks the 12-bit ADC resolution and CapSense of the PSoC 3. The CY8C4245LQI-483 is a 32-bit ARM Cortex-M0 PSoC 4 at 48 MHz with 34 I/O and a similar analog front-end — it is architecturally different but fills a similar mixed-signal role. Neither is a drop-in pin-compatible replacement; a board redesign is needed to swap families."},{"question":"What is the programming interface for CY8C3445LTI-078?","answer":"The CY8C3445LTI-078 is programmed and debugged through the PSoC Creator IDE using the SWD (Serial Wire Debug) protocol, accessible on dedicated programming pins. Infineon's MiniProg3 programmer is the standard tool for this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3445LTI-078","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3445LTI-078 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}}