{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C4247LQI-BL453","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C4247LQI-BL453","canonicalUrl":"https://icboms.com/infineon/CY8C4247LQI-BL453","factsUrl":"https://icboms.com/api/mcp/products/CY8C4247LQI-BL453","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PSoC® 4 CY8C4xx8 BLE series, CY8C4247LQI-BL453, ARM® Cortex®-M0 32-Bit single-core MCU, 48 MHz, FLASH program memory, 36 I/O, I²C/SPI/UART/USART/Bluetooth, A/D 8x12b, -40°C to 85°C, 1.71 V supply.","salesMarkdown":"## PSoC 4 BLE — wireless MCU with programmable analog and touch The Infineon CY8C4247LQI-BL453 is a PSoC® 4 CY8C4xx8 BLE series microcontroller built around a 32-bit ARM® Cortex®-M0 core running at 48 MHz. What sets it apart from a plain MCU is the integrated Bluetooth Low Energy radio, CapSense capacitive-touch sensing with SmartSense auto-tuning, and a programmable analog front-end that includes an 8-channel 12-bit ADC. This combination targets battery-operated wireless sensor nodes, portable medical devices, human-interface panels, and IoT edge endpoints where a separate Bluetooth IC and touch controller would otherwise inflate the BOM. ## 48 MHz Cortex-M0 with 36 I/O — what the peripheral set means for the BOM The 48 MHz Cortex-M0 is not a heavy-lift application processor; it is sized for sensor polling, protocol handling, and BLE stack duty. The real BOM consolidation comes from the integrated Bluetooth and CapSense blocks — they eliminate a separate BLE SoC and a dedicated capacitive-touch controller IC. The 36 I/O are enough for a small keypad, a few LED indicators, and a SPI/I²C sensor bus, but not for a large TFT display or parallel memory bus. The 8x12b ADC covers battery monitoring and analog sensor inputs without an external converter. For designs that also need a DAC, the sibling CY8C4245LQI-483 adds 2x IDAC outputs, though it lacks Bluetooth. ## Package and temperature grade — board-fit notes This is a surface-mount part in a tray-packaged format. The 1.71 V minimum supply lets it pair with a single-cell battery without a boost converter.","metaTitle":"CY8C4247LQI-BL453 PSoC 4 BLE MCU, ARM Cortex-M0, 48 MHz","metaDescription":"Infineon CY8C4247LQI-BL453 PSoC 4 BLE series MCU with ARM Cortex-M0 at 48 MHz, integrated Bluetooth, CapSense, 8x12b ADC, 36 I/O.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC® 4 CY8C4xx8 BLE","has_mpn":"CY8C4247","cpu_core":"ARM® Cortex®-M0","frame_size":"32-Bit Single-Core","fuse_speed":"48 MHz","connectivity":"I²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART","package_type":"Tray","Number Of I/O":"36","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 8x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","peripheral_types":"Bluetooth, Brown-out Detect/Reset, Cap Sense, LVD, POR, PWM, SmartCard, SmartSense, 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":"$3.72","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e436643f32b236adb34e62a6be5a0038.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C4247LQI-BL453/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between CY8C4247LQI-BL453 and CY8C4247LQI-BL473?","answer":"Both are PSoC 4 BLE devices with identical pinout, core, memory, and peripheral sets. The BL473 variant carries a different BLE stack firmware version. Functionally they are drop-in interchangeable at the hardware level, but the BLE protocol version may differ. Verify the stack compatibility with your host application before substituting."},{"question":"Does CY8C4247LQI-BL453 include Bluetooth Low Energy?","answer":"Yes. Bluetooth is listed in the peripheral types, and the 'BL' in the order code designates BLE capability. The integrated radio handles the BLE protocol stack, eliminating a separate Bluetooth IC from the BOM."},{"question":"Which parts are cross-reference or equivalent to CY8C4247LQI-BL453?","answer":"The closest functional equivalent is CY8C4247LQI-BL473 — same PSoC 4 BLE series, same Cortex-M0 core, same I/O count and ADC. For a non-BLE variant with similar analog features, the CY8C4245LQI-483 offers 2x IDAC outputs but lacks Bluetooth. No direct second-source from another manufacturer exists for this Infineon-specific PSoC architecture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C4247LQI-BL453","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C4247LQI-BL453 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}}