{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F401CBY6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F401CBY6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F401CBY6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F401CBY6TR","rawCanonicalId":null},"summary":{"shortDescription":"ST STM32F4 series STM32F401CBY6TR, ARM Cortex-M4 32-Bit Single-Core MCU, 84MHz, 128KB Flash, 64K x 8 RAM, 49-WLCSP, -40°C to 85°C.","salesMarkdown":"## 84 MHz Cortex-M4 in a wafer-level CSP — what that buys the board That footprint is the smallest in the STM32F4 family, which matters when board area is the constraint — wearable, sensor hub, or compact motor-drive feedback boards. The 32-bit single-core processor includes a single-cycle multiply and hardware divide, plus a floating-point unit, so sensor fusion or PID loops run without software emulation overhead. The 36 GPIOs in this package limit parallel bus expansion, but for a serial-centric design the pin count is adequate. ## Lifecycle and sourcing — active, but check the package The WLCSP package is not a standard JEDEC footprint — it requires a stencil design matched to the 0.4 mm ball pitch and careful reflow profiling. For volume builds, confirm the PCN status on the base number STM32F401; ST has migrated some F4 variants to newer nodes, but this order code remains in the active portfolio.","metaTitle":"STM32F401CBY6TR STM32F4 ARM Cortex-M4 MCU, 84 MHz","metaDescription":"STM32F401CBY6TR 32-bit ARM Cortex-M4 MCU at 84 MHz with 128 KB Flash and 64 KB RAM in 49-WLCSP. Industrial temp range -40°C to 85°C. 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":"128KB (128K 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":"$15.9100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f739c6e7b3a419d9a7183e4b2cf48ca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F401CBY6TR/alternatives.json"},"ai":{"faq":[{"question":"Does STM32F401CBY6TR include a built-in DAC?","answer":"No. The peripheral set includes a 12-bit ADC with 10 channels, but no DAC is listed in the on-chip peripherals. For designs requiring analog output, an external DAC or PWM with filter is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F401CBY6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F401CBY6TR 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}}