{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F401CCY6TT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F401CCY6TT","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F401CCY6TT","factsUrl":"https://icboms.com/api/mcp/products/STM32F401CCY6TT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, STM32F401CCY6TT, 32-Bit Single-Core ARM Cortex-M4, 84MHz, 256KB (256K x 8) FLASH, 64K x 8 RAM, 1.7V ~ 3.6V, 36 I/O, -40°C ~ 85°C, 49-WLCSP.","salesMarkdown":"## 84 MHz Cortex-M4 in a WLCSP — what this part is The 49-WLCSP package (wafer-level chip-scale) saves board area but demands careful PCB layout — the 0.4 mm ball pitch and 0.5 mm body mean the reflow profile and stencil aperture need tuning for reliable solder joints. ## Peripherals and connectivity — what is on the die For connectivity it offers I²C, IrDA, LINbus, SDIO, SPI, UART/USART, and USB OTG — enough for a sensor hub, a motor-control node, or a USB-to-serial bridge. The 36 I/O lines are all available in the WLCSP, though some are shared with the ADC inputs; the pin mux table in the reference manual is worth a read before committing the schematic. ## Temperature grade and operating range It fits outdoor telecom enclosures, factory-floor controllers, and automotive cabin applications — but not under-hood or engine-bay environments where 125°C is required. ## Sourcing posture — active, no LTB risk The WLCSP package is less common in distributor stock than the LQFP-48 variant (STM32F401CCU6), so lead time may run a few weeks longer; plan the BOM accordingly.","metaTitle":"STM32F401CCY6TT STM32F4 ARM Cortex-M4 MCU, 84MHz","metaDescription":"STMicroelectronics STM32F401CCY6TT 32-bit ARM Cortex-M4 MCU, 84MHz core, 256KB Flash, 64K x 8 RAM, 49-WLCSP, -40°C to 85°C.","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) Cut Tape (CT)","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":"$6.2100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f739c6e7b3a419d9a7183e4b2cf48ca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F401CCY6TT/alternatives.json"},"ai":{"faq":[{"question":"What is the flash memory size of STM32F401CCY6TT?","answer":"The flash memory size is 256 KB (256K x 8), organized as program memory."},{"question":"Does STM32F401CCY6TT support USB OTG?","answer":"Yes, USB OTG is listed in the connectivity set, alongside I²C, SPI, UART/USART, SDIO, and others."},{"question":"How does STM32F401CCY6TT compare to STM32F401CCU6?","answer":"The STM32F401CCU6 is the same die in an LQFP-48 package, while the STM32F401CCY6TT comes in a 49-WLCSP. The LQFP variant is easier to hand-solder and inspect, and more widely stocked; the WLCSP saves about 70% board area but requires a controlled reflow process and X-ray inspection for voiding. Core specs — 84 MHz, 256 KB Flash, 64 KB SRAM — are identical."},{"question":"What is the closest pin-compatible alternative to STM32F401CCY6TT in this component family?","answer":"Within the STM32F401 line, the STM32F401CCU6 (LQFP-48) is the same die and functionally identical, but the pinout differs due to the package change — they are not pin-compatible. For a true pin-compatible WLCSP alternative, the STM32F411CEY6TT offers a higher 100 MHz core and 512 KB Flash in the same 49-WLCSP footprint, though the supply voltage and peripheral set are nearly identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F401CCY6TT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F401CCY6TT 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}}