{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F401CCY6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F401CCY6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F401CCY6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F401CCY6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series STM32F401CCY6TR, ARM Cortex-M4, 32-Bit Single-Core, 84MHz, 256KB Flash, 64K x 8 RAM, 49-WLCSP, -40°C ~ 85°C.","salesMarkdown":"## 84 MHz Cortex-M4 in a 49-ball WLCSP The STM32F401CCY6TR is an STM32F4-series ARM Cortex-M4 microcontroller in a 49-WLCSP package, rated for 84 MHz operation. This part is typically specified for space-constrained designs where a full LQFP package won't fit, such as wearable sensors, portable instrumentation, or compact IoT nodes. The 64 KB SRAM is shared between code data and DMA buffers; if your application uses USB OTG with double-buffered endpoints, budget at least 8 KB for the USB FIFO. The 10-channel 12-bit ADC (10x12b) is adequate for reading a handful of analog sensors, but don't plan on simultaneous sampling — it's a single SAR with a mux. The base product number STM32F401 covers a range of Flash and SRAM densities in the same WLCSP footprint, so if a project later needs more memory, a pin-compatible upgrade within the family is possible without a board spin. ## 49-WLCSP — what the package means for assembly The 49-WLCSP (Wafer-Level Chip-Scale Package) has no leads — the solder balls are directly on the die. The 0.4 mm ball pitch demands a Class 3 PCB capability for reliable solder joints; a standard 0.5 mm pitch board house may struggle with yield. For rework, a hot-air station with a fine nozzle and a preheat plate is needed — a standard soldering iron won't touch it.","metaTitle":"STM32F401CCY6TR STM32F4 ARM Cortex-M4 MCU, 84MHz","metaDescription":"STM32F401CCY6TR 32-bit ARM Cortex-M4 MCU at 84 MHz, 256 KB Flash, 64 KB SRAM, 49-WLCSP, active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"84MHz","Series":"STM32F4","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SDIO, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"36","Core Processor":"ARM® Cortex®-M4","Package / Case":"49-UFBGA, WLCSP","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F401","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"49-WLCSP","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f739c6e7b3a419d9a7183e4b2cf48ca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F401CCY6TR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F401CCY6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F401CCY6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}