{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3866LTI-067","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3866LTI-067","canonicalUrl":"https://icboms.com/infineon/CY8C3866LTI-067","factsUrl":"https://icboms.com/api/mcp/products/CY8C3866LTI-067","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PSOC 3 CY8C38xx series, CY8C3866LTI-067, 8-bit 8051 MCU at 67MHz, 64KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 16x20b ADC, 4x8b DAC, 25 I/O, 48-QFN (7x7), -40°C to 85°C, 1.71V–5.5V.","salesMarkdown":"## What this PSOC 3 brings to the board What sets this chip apart from a plain 8051 is the integrated analog: a 16-channel, 20-bit delta-sigma ADC and a quad 8-bit DAC. That ADC resolution is unusual for an 8-bit MCU — it lets you read strain gauges, thermocouples, or capacitive touch sensors directly, without an external converter. The peripheral set includes CapSense, DMA, LCD drive, POR, PWM, and a watchdog timer. Connectivity covers I²C, SPI, UART/USART, LINbus, USB, and an external bus interface (EBI/EMI) for memory or FPGA expansion. ## Lifecycle and sourcing reality The CY8C3866LTI-067 carries an Active lifecycle status, so there is no last-time-buy or obsolescence notice to plan around. This part is sourced through independent distribution and quoted to order against an RFQ.","metaTitle":"Cypress CY8C3866LTI-067 PSOC 3 MCU, 8-Bit 8051 67MHz","metaDescription":"Active Cypress PSOC 3 CY8C3866LTI-067 8-bit MCU with 8051 core at 67MHz, 64KB Flash, 8K RAM, 16x20b ADC. Check stock and pricing at quote time.","metaKeywords":null},"attributes":{"series":"PSOC® 3 CY8C38xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"67MHz","Series":"PSOC® 3 CY8C38xx","Package":"Tray","RAM Size":"8K x 8","Core Size":"8-Bit","EEPROM Size":"2K x 8","Peripherals":"CapSense, DMA, LCD, 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 16x20b; D/A 4x8b","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":"$21.06","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$21.06000","currency":"USD"},{"qty":10,"price":"$19.35700","currency":"USD"},{"qty":25,"price":"$18.55440","currency":"USD"},{"qty":80,"price":"$16.34775","currency":"USD"},{"qty":260,"price":"$15.54542","currency":"USD"},{"qty":520,"price":"$14.54248","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bce109168f5bfb1a2b6d3f9ab94fe849.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the programming interface for CY8C3866LTI-067?","answer":"The PSOC 3 family uses a serial wire debug (SWD) interface for programming and debugging. A standard MiniProg3 or compatible programmer connects to the SWD pins (SWDIO, SWDCK) plus power and ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3866LTI-067","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3866LTI-067 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}}