STM32F411CEY6TR - 100MHz Cortex-M4 MCU 512KB Flash 49-WLCSP | ST
MPN： STM32F411CEY6TR ✓ 啟用中STM32F411CEY6TR 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and RAM), and programmable peripherals. The Cortex-M4 family adds a single-precision FPU and DSP extensions, making it suitable for signal processing, sensor fusion, and motor control. MCUs sit at the lowest layer of the embedded hierarchy: SoC -> MCU -> Cortex-M4 -> STM32F4 series, and are governed by standards such as CMSIS, Arm Embedded ABI, and IEC 60730 for functional safety.
Key features of the STM32F411CEY6TR include 512 KB Flash, 128 KB SRAM, an ART Accelerator with 4 KB instruction cache that delivers 0-wait-state execution from Flash at 100 MHz, an active current consumption around 100 uA/MHz, and a comprehensive peripheral set including USB OTG FS, SPI, I2C, USART, timers, ADC, and SDIO. The integrated FPU accelerates floating-point math used in audio and control loops.
Architecturally, the device is built on a 90 nm CMOS process and uses ST's adaptive real-time ART Accelerator to eliminate Flash wait states, achieving benchmark-leading 1.25 DMIPS/MHz performance. The Cortex-M4 core is paired with a Nested Vectored Interrupt Controller (NVIC) supporting 16 priority levels, a Memory Protection Unit (MPU), and CoreSight debug/trace for production-safe development.
Typical applications include wearable fitness devices, drones and quadcopter flight controllers, USB HID peripherals, audio processing units, and low-power IoT edge nodes. The WLCSP package and aggressive 100 uA/MHz current make it attractive for size-constrained battery-powered designs.
When designing, place the WLCSP decoupling network (100 nF + 4.7 uF) within 2 mm of the supply balls, route the HSE/LSE traces as short as possible, and respect the WLCSP underfill recommendation if the board will see mechanical stress.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 STM32F411CEY6TR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM32F411CEY6TR （相同外形與佔位） — 差異在於 Package, Timers, Communication Interfaces, Core, Maximum Clock Frequency.
STM32F411CEU6TR
✅ 直接替換✗ 缺貨
$2.4003 / 單位
查看資料表 →STM32F401CEY6TR
✅ 直接替換📋 參考替代品（不在目錄中）
STM32F411CCU6TR
✅ 直接替換聯絡詢價
查看資料表 →STM32F405OEY6TR
✅ 直接替換聯絡詢價
查看資料表 →STM32F401CEU6
✅ 直接替換聯絡詢價
查看資料表 →STM32F411CEY6TR 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M4 with FPU and DSP |
| 最大時脈頻率 | 100 MHz |
| Performance | 125 DMIPS / 1.25 DMIPS/MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 128 KB |
| Operating Voltage Range | 1.7 V to 3.6 V |
| 封裝 | 49-WLCSP (3 x 3.19 mm) |
| 安裝類型 | Surface Mount |
| USB | USB OTG Full-Speed |
| ADC | 12-bit, up to 16 channels |
| Timers | 16- and 32-bit, multiple channels |
| Communication Interfaces | SPI, I2C, USART, SDIO |
| 工作溫度 | -40 C to +85 C |
| RoHS 狀態 | Compliant |
| MSL 等級 | 1 |
| Supply Current (active) | approx. 100 uA/MHz |
STM32F411CEY6TR 49-wlcsp (3 x 3.19 mm) 腳位配置指南
STM32F411CEY6TR（49-wlcsp (3 x 3.19 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM32F411CEY6TR.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM32F411CEY6TR 適用於 6 應用s: Wearable Fitness and Health Tracker, Drone and Quadcopter Flight Controller, USB HID Peripheral and Audio Device, Industrial Sensor Hub and Edge Node, Audio Processing and Effects Pedal, IoT Edge Sensor with USB Debug.
Wearable Fitness and Health Tracker
The STM32F411CEY6TR is well suited to wearable fitness devices where board space is at a premium and DSP performance is needed for heart-rate or motion analysis. The 49-WLCSP footprint of 3 x 3.19 mm fits inside slim wristbands, while the Cortex-M4 with FPU and DSP extensions executes sensor-fusion filters such as Madgwick or Kalman in real time. The 100 MHz CPU and 128 KB SRAM hold the AHRS state and tap-detection buffers without off-chip memory. USB OTG full-speed supports direct charging and data sync without an external bridge IC. Compared to low-power Cortex-M0+ parts, the F411 trades 100 uA/MHz active current for a ~10x compute headroom, allowing on-device step counting and gesture recognition without external sensors.
推薦
Drone and Quadcopter Flight Controller
Drones and quadcopters require tight PID loops running at 1 kHz or faster while also handling radio comms and sensor fusion. The STM32F411CEY6TR's 100 MHz Cortex-M4 with FPU executes a quaternion-based attitude filter with sub-200 us latency. The 49-WLCSP package fits on 30 x 30 mm flight-controller boards alongside an MPU6050 or ICM-42688 IMU. Hardware SPI runs the IMU at 20 MHz with deterministic timing, while USART handles SBUS or CRSF receiver input. The FPU and DSP extension enable on-board audio processing for beeper tones or FPV microphone streams. Compared to Cortex-M0+ MCUs, the F411 adds 30-50% more headroom for vibration-damping notch filters without dropping loop rate.
推薦
USB HID Peripheral and Audio Device
The STM32F411CEY6TR's USB OTG full-speed controller enables keyboard, mouse, gamepad, MIDI, or USB audio class 1.0 devices without an external PHY. The on-chip FS transceiver saves a TUSB1106 or equivalent, reducing BOM by ~$0.50 and freeing board area. The Cortex-M4's 100 MHz clock comfortably runs USB polling at 1 kHz while leaving 60-70% CPU for HID processing, LED animations, or audio rendering. The 512 KB Flash holds a USB device stack plus application code; the 128 KB SRAM handles HID ring buffers and USB descriptors. Compared to F0- or L0-series MCUs, the F411 adds the FPU for any digital audio filter that may be layered on top of the USB stream.
推薦
Industrial Sensor Hub and Edge Node
Industrial sensor hubs aggregate multiple analog or digital sensors and forward preprocessed data to a PLC or cloud. The STM32F411CEY6TR's 12-bit ADC with 16 input channels, plus multiple SPI/I2C/USART ports, allows connection of thermocouples, pressure sensors, and accelerometers simultaneously. The Cortex-M4's 100 MHz and DSP extensions run FFT-based vibration analysis or moving-average filters at 1 kSPS. The 512 KB Flash is enough to hold a small TCP/IP stack or Modbus RTU master, while the 128 KB SRAM supports double-buffered acquisition. Compared to discrete MCU + DSP architectures, the F411 saves cost and PCB area by integrating everything on a single die in a 49-WLCSP.
推薦
Audio Processing and Effects Pedal
Guitar and vocal effects pedals increasingly use DSP for reverb, delay, and pitch shifting instead of analog bucket-brigade chips. The STM32F411CEY6TR's Cortex-M4 with FPU runs audio processing at 48 kHz sample rate with 200-500 taps of delay, sustaining under 50% CPU load for chorus or flanger effects. The 49-WLCSP package fits inside a 1590B enclosure with battery power. The I2S peripheral interfaces directly to a 24-bit audio codec such as the PCM5102A or SGTL5000. The 512 KB Flash stores preset tables and effects code, while the 128 KB SRAM hosts delay-line buffers. Compared to dedicated audio DSPs, the F411 offers a cost-effective general-purpose platform with USB for preset management.
推薦
IoT Edge Sensor with USB Debug
IoT edge nodes for smart home or building automation often combine sensor reading, local decision making, and USB-based firmware update. The STM32F411CEY6TR handles all three: SPI sensors for environment data, Cortex-M4 FPU for threshold detection or basic ML inference, and USB OTG FS for DFU bootloader or wired commissioning. The 49-WLCSP package integrates onto a coin-cell powered PCB where 100 mm square is the target. The 1.7-3.6 V supply range supports direct Li-coin-cell connection. Compared to bare Cortex-M0+ designs, the F411 adds 20-30x more compute and DSP capability for on-device anomaly detection.
推薦
推薦產品摘要
工程參考資料，適用於 STM32F411CEY6TR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32F411CEU6TR | STM32F401CEY6TR | STM32F411CCU6TR | STM32F405OEY6TR | STM32F401CEU6 |
|---|---|---|---|---|---|---|
| Package | 49-WLCSP (3x3.19 mm) | 48-UFQFPN | 49-WLCSP | 48-UFQFPN | WLCSP | 48-UFQFPN |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Cortex-M4 100 MHz | Cortex-M4 100 MHz | Cortex-M4 84 MHz | Cortex-M4 100 MHz | Cortex-M4 168 MHz | Cortex-M4 84 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 256 KB | 1 MB | 256 KB |
| SRAM | 128 KB | 128 KB | 96 KB | 128 KB | 192 KB | 96 KB |
| USB | USB OTG FS | USB OTG FS | USB OTG FS | USB OTG FS | USB OTG FS + HS | USB OTG FS |
| Operating Voltage | 1.7-3.6 V | 1.7-3.6 V | 1.7-3.6 V | 1.7-3.6 V | 1.8-3.6 V | 1.7-3.6 V |
| DMIPS | 125 DMIPS | 125 DMIPS | 105 DMIPS | 125 DMIPS | 210 DMIPS | 105 DMIPS |
主要差異化特點
- WLCSP package with 100 MHz and 512 KB Flash (對比STM32F401CEY6TR)
- Highest compute density in 49-WLCSP STM32F4 family (對比STM32F411CCU6TR)
- Lower power at same 100 MHz vs F405 in WLCSP (對比STM32F405OEY6TR)
設計說明
The 49-WLCSP package requires a 4-layer PCB with laser-drilled micro vias or a 6-layer stackup with staggered vias to route signals out of the inner balls. Place 100 nF decoupling on every VDD ball within 2 mm trace length, plus one 4.7 uF bulk capacitor on the main rail. Route the HSE and LSE crystal traces as short as possible (<5 mm) and guard with a ground ring to reduce EMI.
WLCSP packages are sensitive to board flex; ST recommends underfill (such as Henkel Loctite 3563) when the assembly will see drop, vibration, or thermal cycling stresses. Skipping underfill can lead to solder joint fatigue and intermittent failures in field deployments. Also respect the MSL-1 floor life - while MSL-1 allows unlimited out-of-bag time, the 49-WLCSP land pads are easily contaminated by handling.
The STM32F411CEY6TR's WLCSP package has limited thermal dissipation compared to UFQFPN or LQFP packages. Estimated: at 100 MHz active and 3.3 V supply, core current is ~33 mA, dissipating ~110 mW. Without thermal vias or copper pour, junction temperature can rise 20-30 C above ambient. For continuous high-CPU designs, add a 5 x 5 mm copper pour under the package and stitch it with thermal vias to internal ground planes.
The USB OTG FS data lines (DP, DM) must be routed as a 90 ohm differential pair with length matching to within 1 mm. Keep the pair clear of clock traces, switcher nodes, and high-current paths. Add a common-mode choke and ESD protection array (such as USBLC6-2SC6) close to the USB connector. Avoid running the differential pair over plane splits, which causes impedance discontinuities and EMI.
合規資訊
RoHS and REACH compliant per ST product page. Not AEC-Q100 qualified - this part targets consumer, industrial, and IoT applications, not automotive. For automotive-grade STM32F4 parts, use STM32F4x9 or STM32F4x3 AEC-Q100 variants.
