STM32F411CEY3TR - 100MHz Cortex-M4 MCU, 512KB Flash, 49-WLCSP | STMicroelectronics
N.º da peça: STM32F411CEY3TR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.62 | $5,62 |
| 10 | $5.18 | $51,80 |
| 100 | $4.55 | $455,00 |
| 500 | $3.92 | $1.960,00 |
| 1.000 | $3.41 | $3.410,00 |
STM32F411CEY3TR Visão geral
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core with single-precision floating-point unit and single-cycle MAC DSP instructions, sitting in the Cortex-M family hierarchy (Cortex-M0/M0+/M3/M4/M7/M33). It is widely used in embedded systems for motor control, audio processing, sensor fusion, and IoT edge nodes where deterministic real-time performance and low power are both required.
Key features of the STM32F411CEY3TR include up to 100 MHz CPU clock with ART Accelerator for 0-wait-state Flash execution, 512 KB Flash, 128 KB SRAM, USB 2.0 FS OTG, 11 timers (including motor-control PWM and 32-bit timers), one 12-bit ADC up to 2.4 MSPS, and up to 13 communication interfaces (USART, SPI, I2C, I2S, USB, CAN, SDIO). The 49-WLCSP package is the smallest footprint option in the STM32F411 family, enabling wearable and space-constrained designs.
The architecture uses a multi-AHB bus matrix and dedicated DMA streams, giving the Cortex-M4 deterministic access to peripherals and memory. The ART Accelerator pre-fetches and caches Flash lines, allowing the core to execute from Flash with zero wait states at full 100 MHz, eliminating the typical speed penalty of embedded Flash.
Typical applications include wearable fitness/health devices, consumer audio, USB HID/CDC devices, drones and small quadcopters, sensor hubs, and compact IoT nodes. The WLCSP package is particularly suited for ultra-compact PCB designs where BGA-like density is required but lead-free reflow compatibility is desired.
When designing with this device, pay attention to the WLCSP PCB land pattern: 0.4 mm pitch requires NSMD pads, laser-drilled vias, and a reflow profile matched to ST's WLCSP soldering recommendations. For 5V-tolerant I/O, confirm the specific pin map in the WLCSP variant datasheet - WLCSP packages often omit some 5V-tolerant pins due to space constraints.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical PCB layout notes for the WLCSP variant not found in the manufacturer datasheet alone.
Alternativas drop-in para STM32F411CEY3TR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32F411CEY3TR (mesmo formato e footprint) — diferindo em Flash Memory, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32F411CCY6TR
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →STM32F411CEY6UTR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32F411CEY3TR Classificações máximas e características elétricas
| Core | ARM Cortex-M4 with FPU and DSP |
| Core Architecture | ARM 32-bit RISC |
| Maximum CPU Clock | 100 MHz |
| Performance | 125 DMIPS / 273 CoreMark |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Encapsulamento | 49-ball WLCSP (3.0 x 3.19 mm) |
| Operating Voltage | 1.7 V to 3.6 V |
| I/O Count (approx, package-dependent) | 36 (WLCSP variant) |
| ADC | 1 x 12-bit, up to 2.4 MSPS |
| Timers | 11 (including 32-bit and motor-control) |
| Communication Interfaces | USART/SPI/I2C/I2S/USB OTG FS/CAN/SDIO (up to 13) |
| USB | USB 2.0 FS OTG with on-chip PHY |
| Temperatura de operação | -40C to +85C (industrial grade, suffix 3) |
| Tipo de montagem | Surface Mount (WLCSP) |
| Nível MSL | 1 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
Guia de Configuração de Pinos do STM32F411CEY3TR 36 (wlcsp variant)
Configuração de pinos para STM32F411CEY3TR (pacote 36 (wlcsp variant)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM32F411CEY3TR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32F411CEY3TR é adequado para 6 aplicaçãos: Wearable Fitness Tracker, USB HID / CDC Device Dongle, Drone Flight Controller, Compact Audio DSP / USB Speaker, IoT Sensor Hub with BLE Bridge, Industrial CAN Node / Field Sensor.
Wearable Fitness Tracker
The STM32F411CEY3TR's 49-WLCSP package (3.0 x 3.19 mm footprint) makes it the smallest Cortex-M4 MCU in the STM32F4 family, directly enabling wristband form factors. The 100 MHz Cortex-M4 with FPU runs pedometer step-detection algorithms and on-device heart-rate variability (HRV) DSP in real time, with the FPU accelerating FFT-based pulse-oximetry math. With 128 KB SRAM and 512 KB Flash, the MCU can hold a full Bluetooth LE GATT service table, an over-the-air firmware update (OTA) bootloader, and a vendor-specific sensor-fusion routine all on-chip. Power consumption of about 10 mA/MHz active lets a typical pedometer run >5 days on a 100 mAh Li-Po battery. Recommended companions: LIS2DH accelerometer, MAX30102 optical HR sensor.
Recomendado
USB HID / CDC Device Dongle
The on-chip USB 2.0 Full-Speed OTG PHY with internal pull-up/pull-down lets the STM32F411CEY3TR implement USB HID keyboards, mice, CDC virtual COM ports, or vendor-specific dongles with zero external PHY components. Running at 100 MHz with 0-wait-state Flash, it can sustain 12 Mbps USB traffic while also running HID report processing. The 512 KB Flash is more than adequate for USB stacks plus a vendor application, and the 128 KB SRAM handles HID report buffers comfortably. Its 49-WLCSP allows ultra-compact dongle designs that fit inside a USB Type-A connector shell. Recommended companions: USBLC6-2SC6 ESD protection array for port robustness.
Recomendado
Drone Flight Controller
The STM32F411CEY3TR's Cortex-M4 with single-precision FPU and DSP MAC instructions is widely used in small quadcopter flight controllers running Betaflight or INAV firmware. The 100 MHz CPU executes 8 kHz PID loops with 6-axis sensor fusion (gyro + accel) at <5% CPU load, leaving headroom for altitude estimation and telemetry. The 11 timers include motor-control PWMs and 32-bit timers, directly driving 4 brushless ESCs without external timer ICs. The DMA+AHB matrix streams SPI/ICM-42688 gyro data with deterministic latency, critical for flight stability. The 49-WLCSP package fits a 20x20 mm flight controller PCB. Recommended companions: ICM-42688-P 6-axis IMU, BMP280 barometer.
Recomendado
Compact Audio DSP / USB Speaker
The STM32F411CEY3TR's Cortex-M4 DSP extensions (single-cycle MAC, SIMD) and 100 MHz clock support real-time audio effects such as parametric EQ, dynamic range compression, and reverb at 48 kHz sample rates. The I2S peripheral connects directly to DACs like the PCM5102A, while USB OTG FS provides up to 12 Mbps audio streaming (USB Audio Class 1.0) - enough for 24-bit/96 kHz stereo. With 128 KB SRAM it can buffer ~5 ms of 48 kHz stereo audio in/out, sufficient for the I2S jitter compensation. The 49-WLCSP is well-suited to ultra-thin soundbar or portable speaker PCBAs. Recommended companions: PCM5102APWR DAC, TAS5711PHPR Class-D amp.
Recomendado
IoT Sensor Hub with BLE Bridge
The STM32F411CEY3TR serves as the sensor-hub MCU in wearables and IoT devices, aggregating data from multiple I2C/SPI sensors (accelerometer, magnetometer, pressure, humidity) and forwarding pre-processed data over UART to an external BLE module like the nRF52832. The 100 MHz core runs sensor-fusion and on-device threshold detection, reducing the BLE radio wake time and saving system power. The 49-WLCSP footprint lets the entire sensor hub fit in a coin-cell form factor. The 13 communication interfaces (USART, SPI, I2C) allow 5+ sensors plus an external radio to be connected simultaneously. Recommended companions: BME280 environmental sensor.
Recomendado
Industrial CAN Node / Field Sensor
The STM32F411CEY3TR integrates a CAN 2.0B interface that, combined with the Cortex-M4's deterministic real-time response, makes it suitable for industrial sensor nodes on CANopen or DeviceNet networks. The 100 MHz core executes protocol stacks (CANopen, J1939) and 1 kHz sensor sampling concurrently. The 49-WLCSP variant suits miniaturized industrial sensor heads. The 1.7-3.6 V supply range covers 3.3 V industrial rails, and the -40C to +85C operating range meets most industrial environments. An external MCP2562 transceiver is required to convert the chip's CAN_TX/RX to differential CANH/CANL. Recommended companions: MCP2562-E/SN CAN transceiver, TJA1021T/20/C LIN transceiver for multi-bridge nodes.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32F411CEY3TR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STM32F411CEU6TR | STM32F411CCY6TR | STM32F411CEY6UTR |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 49-ball WLCSP (3.0 x 3.19 mm) | 48-pin UFQFPN (7x7 mm) - DIFFERENT footprint | 49-ball WLCSP - same | 49-ball WLCSP - same |
| Core / Max Clock | Cortex-M4 / 100 MHz | Cortex-M4 / 100 MHz | Cortex-M4 / 100 MHz | Cortex-M4 / 100 MHz |
| Flash | 512 KB | 512 KB | 256 KB (-50%) | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB |
| USB OTG FS | Yes (on-chip PHY) | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx. Unit Price (1k qty) | $3.41 | $3.20 (approx) | $2.95 (approx, lower Flash) | $3.45 (approx) |
Principais diferenciais
- Smallest STM32F411 package footprint (vs STM32F411CEU6TR (48-UFQFPN))
- Same die as UFQFPN - full peripheral compatibility (vs STM32F411CCY6TR (256KB Flash variant))
- 0-wait-state Flash at full 100 MHz via ART Accelerator (vs STM32F030 Cortex-M0 parts)
Notas de projeto
Estimated: The 49-WLCSP uses 0.4 mm ball pitch. The PCB land pattern should use NSMD (Non-Solder Mask Defined) pads with 0.20-0.25 mm pad diameter and 0.4 mm pitch. A 1.0-1.2 mil (0.025-0.030 mm) electrolytic Ni/Au or ENIG finish is recommended for reliable WLCSP soldering. Via-in-pad micro-vias (0.10 mm drill, 0.25 mm pad) are commonly used for breakout to inner signal layers - laser-drilled and copper-filled to prevent solder wicking. ST's application note AN4570 provides the canonical WLCSP land-pattern and reflow-profile reference.
Decouple VDD with 100 nF X7R ceramic on each VDD pin (4 in WLCSP) plus one 4.7 uF X5R bulk capacitor within 5 mm of the package. VDDA requires its own 100 nF + 1 uF RC filter (10 ohm + 1 uF) to reject noise from the 12-bit ADC reference. The internal voltage regulator (LDO) provides 1.2 V to the core; no external core supply is required. For USB OTG operation, VDD must be at least 3.0 V to meet USB PHY timing per USB 2.0 spec.
The 49-WLCSP variant exposes fewer I/O than the LQFP/UFBGA packages (typically 36 I/O vs 81 in LQFP64). Some 5V-tolerant I/O pins in the larger packages are unavailable on the WLCSP. Pin functions must be re-mapped via the STM32CubeMX tool when migrating code from LQFP designs. SWD debug uses PA13 (SWDIO) and PA14 (SWCLK); JTAG is NOT available on the WLCSP variant. Do not exceed the 85C operating temperature for industrial-grade parts; parts with suffix '3' (CEY3TR) are -40C to +85C, suffix '6' or '7' are -40C to +105C.
Informações de conformidade
RoHS compliant per ST product page; lead-free WLCSP with SAC405 balls. Not AEC-Q100 qualified - for automotive use consider STM32F4x1 series with automotive grade. Halogen-free per IEC 61249-2-21.
