{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3444LTI-119","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3444LTI-119","canonicalUrl":"https://icboms.com/infineon/CY8C3444LTI-119","factsUrl":"https://icboms.com/api/mcp/products/CY8C3444LTI-119","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PSoC® 3 CY8C34xx series, CY8C3444, 8-Bit 8051 MCU, 50 MHz, 16KB FLASH, 48-QFN.","salesMarkdown":"The Cypress CY8C3444LTI-119 is an 8-bit 8051-based PSoC 3 microcontroller from the CY8C34xx family, clocked at 50 MHz with 16 KB of on-chip Flash program memory. It integrates a 16-channel 12-bit ADC and a 2-channel 8-bit DAC, plus CapSense touch-sensing and an LCD drive controller — all in a 48-pin QFN package. ## 50 MHz 8051 — bus timing and peripheral loading At 50 MHz the 8051 pipeline delivers roughly 12.5 MIPS, enough for real-time control loops and protocol handling. ## Analog integration — ADC, DAC, and CapSense on one die The 16-channel 12-bit ADC covers multiplexed sensor inputs — thermistors, strain gauges, or potentiometers — without an external mux. The two 8-bit DACs can drive analog outputs for set-point control or waveform generation. CapSense handles capacitive touch buttons and sliders, and the LCD controller drives segment displays directly. For a panel with touch buttons and a small LCD, this part replaces a separate MCU plus an ADC and a touch controller. The supply voltage range extends from 1.71 V up to the device's rated maximum, which covers both 1.8 V and 3.3 V logic rails. For the buyer asking about 3.3 V logic compatibility: the I/O pins are 3.3 V-tolerant when the Vddio rail is set accordingly — no level shifters needed for common 3.3 V peripherals like SPI Flash or I²C sensors. ## Package and footprint — 48-QFN with exposed pad The pad also provides a low-inductance ground return for the analog and digital sections. If you are hand-assembling prototypes, pre-bake the parts at 125°C for 24 hours if the moisture-barrier bag has been open — QFN packages are MSL 3 and can delaminate during reflow if moisture is trapped.","metaTitle":"Cypress CY8C3444LTI-119 PSoC 3 MCU, 8051 50 MHz, 16KB Flash","metaDescription":"Cypress CY8C3444LTI-119 PSoC 3 8-bit MCU with 8051 core at 50 MHz, 16KB Flash, 25 I/O, industrial temp -40°C 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® 3 CY8C34xx","has_mpn":"CY8C3444","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":"$6.79","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/033a7647e9725ad6556608a72e8ec755.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C3444LTI-119/alternatives.json"},"ai":{"faq":[{"question":"Can CY8C3444LTI-119 be used with 3.3V logic?","answer":"Yes, the supply voltage range starts at 1.71 V and the I/O pins are 3.3 V-tolerant when the Vddio rail is set appropriately — no external level shifters are needed for 3.3 V peripherals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3444LTI-119","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3444LTI-119 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}}