{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3446LTI-073","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3446LTI-073","canonicalUrl":"https://icboms.com/infineon/CY8C3446LTI-073","factsUrl":"https://icboms.com/api/mcp/products/CY8C3446LTI-073","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies PSoC® 3 CY8C34xx 8-bit MCU, 8051 core, 50 MHz, 64 KB Flash, 8K x 8 RAM, 48-VFQFN Exposed Pad, Tray.","salesMarkdown":"## 8051 core with programmable analog in a 7x7 mm QFN The CY8C3446LTI-073: It integrates a 16-channel 12-bit ADC and two 8-bit DACs, plus dedicated CapSense, DMA, POR, PWM, and WDT peripherals, so a single chip handles both sensor acquisition and system supervision in a mixed-signal design. The 48-QFN package (7x7 mm) with exposed pad pulls heat into the PCB ground plane — useful when the on-chip analog blocks and USB transceiver are active simultaneously in a compact enclosure. The internal oscillator means the part boots without a crystal — one less component to qualify on the assembly line, though the accuracy is adequate for UART timing, not precision clocking. ## Connectivity and I/O budget The USB peripheral is a full-speed device controller — useful for direct PC connection during development or as a configuration port in a deployed instrument.","metaTitle":"Infineon CY8C3446LTI-073 PSoC 3 MCU, 50 MHz, 64 KB Flash","metaDescription":"CY8C3446LTI-073 PSoC 3 8-bit MCU, 8051 core at 50 MHz, 64 KB Flash, 8 KB RAM, 48-QFN. Active production, ROHS3. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"PSOC® 3 CY8C34xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","Series":"PSOC® 3 CY8C34xx","Package":"Tray","RAM Size":"8K x 8","Core Size":"8-Bit","EEPROM Size":"2K 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":"25","Core Processor":"8051","Package / Case":"48-VFQFN Exposed Pad","Data Converters":"A/D 16x12b; D/A 2x8b","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":"48-QFN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.43000","currency":"USD"},{"qty":10,"price":"$12.33900","currency":"USD"},{"qty":25,"price":"$11.82760","currency":"USD"},{"qty":80,"price":"$10.42113","currency":"USD"},{"qty":260,"price":"$9.90962","currency":"USD"},{"qty":520,"price":"$9.27029","currency":"USD"},{"qty":1040,"price":"$8.50309","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/033a7647e9725ad6556608a72e8ec755.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How does CY8C3446LTI-073 compare to the PSoC 4 CY8C4245LQI-483?","answer":"The CY8C4245LQI-483 uses a 32-bit ARM Cortex-M0 core at 48 MHz versus the 8-bit 8051 at 50 MHz on this part. The PSoC 4 offers 34 I/O and an 8-channel 12-bit ADC, while the CY8C3446LTI-073 provides 25 I/O, a 16-channel 12-bit ADC, and two 8-bit DACs. They are not pin-compatible — the PSoC 4 is in a 48-LQFP package versus the 48-QFN here — so a board layout change is required to swap between them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3446LTI-073","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3446LTI-073 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}}