STM32F411RCT6 - 100MHz Cortex-M4 MCU 256KB | STMicroelectronics
MPN: STM32F411RCT6 ✓ Hoạt độngSTM32F411RCT6 Tóm tắt
What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, peripherals, and I/O on one die. The STM32F411RCT6 sits in the hierarchy: Cortex-M4 -> Arm Cortex-M family -> 32-bit RISC processor -> microprocessor -> semiconductor IC. It functions as the active computational element in embedded systems, executing firmware stored in Flash while coordinating communication, sensing, and actuation through on-chip peripherals.
Key features include the FPU and DSP extensions, an 8 MHz internal RC oscillator, USB 2.0 Full-Speed OTG, up to 11 timers, three I2C, three SPI, three USART, one UART, plus a 12-bit ADC, SDIO, and a real-time clock. The Adaptive Real-Time (ART) Accelerator enables zero-wait-state execution from Flash, allowing the core to sustain 100 MHz throughput without instruction stalls.
A built-in voltage regulator and POR/PDR/PVD circuits reduce external components, while a 4-byte backup register and RTC domain with optional VBAT keep critical state across power-down cycles. The 64-pin LQFP exposes 50+ GPIO, expanding to multiple alternate functions for motor drive, display, and audio interfaces. Internal bus matrix (AHB/APB) connects the DMA controller (8-channel) to memory and peripherals, offloading data movement from the CPU.
Typical applications include consumer medical devices such as glucose meters and portable diagnostics, USB peripherals including HID mass-storage and CDC bridges, motor control for small BLDC and stepper drives, and home audio processing units. Industrial HMI panels and IoT sensor gateways also leverage the SRAM headroom and rich peripherals.
For design, ensure VDDA is tied to VDD or filtered separately when the ADC is in use; place the MCU's bypass network within 5 mm of each pair of supply pins. For USB designs the D+/D- traces must be 90 ohm differential and matched to within 150 mil.
This page synthesizes distributor stock, drop-in alternatives, pricing tiers, and PCB design notes to help procurement and embedded engineers evaluate STM32F411RCT6 alongside competing Cortex-M4 devices.
Bộ thay thế dễ dàng lắp đặt cho STM32F411RCT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32F411RCT6 (cùng hình factor và footprint) — khác nhau ở Package, Core, Timers, Flash Memory, Communication Interfaces.
STM32F401RCT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F405RGT6
✅ Drop-In✓ Còn hàng
$6.75 / Đơn vị
Xem tài liệu →STM32F415RGT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F103RCT6
✅ Drop-In✓ Còn hàng
$1.6406 / Đơn vị
Xem tài liệu →GD32F303RCT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32F411RCT6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 with FPU and DSP |
| Tần số xung maksimum | 100 MHz |
| Program Memory Size | 256 KB Flash |
| RAM Size | 128 KB SRAM |
| Supply Voltage Range | 1.7 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +85/105/125C |
| Hộp | 64-LQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| GPIO Count | 50+ |
| ADC | 1x 12-bit, up to 2.4 MSPS |
| Timers | Up to 11 (including 1 SysTick) |
| Communication Interfaces | 3x I2C, 3x SPI, 3x USART, 1x UART, USB 2.0 FS OTG |
| DMA Channels | 8 |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32F411RCT6
| Chân 1 | PC13 — GPIO/Tamper-RTC |
| Chân 2 | PC14/OSC32_IN — GPIO/LSE crystal input |
| Chân 3 | PC15/OSC32_OUT — GPIO/LSE crystal output |
| Chân 4 | VSS — Ground |
| Chân 5 | VDD — Digital supply voltage |
| Chân 6 | OSC_IN — HSE crystal input |
| Chân 7 | OSC_OUT — HSE crystal output |
| Chân 8 | BOOT0 — Boot mode select |
| Chân 9 | VREF+ — ADC reference (or VDD) |
| Chân 10 | PA0 — GPIO/UART4_TX/ADC_IN0 |
| Chân 11 | PA1 — GPIO/UART4_RX/ADC_IN1 |
| Chân 12 | PA2 — GPIO/USART2_TX/TIM5_CH3/ADC_IN2 |
| Chân 13 | PA3 — GPIO/USART2_RX/ADC_IN3 |
| Chân 14 | PA4 — GPIO/SPI1_NSS/USART2_CK/ADC_IN4 |
| Chân 15 | PA5 — GPIO/SPI1_SCK/ADC_IN5 |
| Chân 16 | PA6 — GPIO/SPI1_MISO/TIM3_CH1/ADC_IN6 |
| Chân 17 | PA7 — GPIO/SPI1_MOSI/TIM3_CH2/ADC_IN7 |
| Chân 18 | PB0 — GPIO/ADC_IN8/TIM3_CH3 |
| Chân 19 | PB1 — GPIO/ADC_IN9/TIM3_CH4 |
| Chân 20 | PB2/BOOT1 — GPIO/Boot mode select |
| Chân 21 | PB10 — GPIO/I2C2_SCL/USART3_TX |
| Chân 22 | PB11 — GPIO/I2C2_SDA/USART3_RX |
| Chân 23 | VSS — Ground |
| Chân 24 | VDD — Digital supply voltage |
| Chân 25 | PB12 — GPIO/SPI2_NSS/I2C2_SMBA |
| Chân 26 | PB13 — GPIO/SPI2_SCK/TIM1_CH1N |
| Chân 27 | PB14 — GPIO/SPI2_MISO/TIM1_CH2N |
| Chân 28 | PB15 — GPIO/SPI2_MOSI/TIM1_CH3N |
| Chân 29 | PA8 — GPIO/USART1_CK/TIM1_CH1/MCO1 |
| Chân 30 | PA9 — GPIO/USART1_TX/TIM1_CH2 |
| Chân 31 | PA10 — GPIO/USART1_RX/TIM1_CH3 |
| Chân 32 | PA11 — GPIO/USB_DM/CAN_RX |
| Chân 33 | PA12 — GPIO/USB_DP/CAN_TX |
| Chân 34 | PA13/JTMS — GPIO/SWDIO |
| Chân 35 | VSS — Ground |
| Chân 36 | VDD — Digital supply voltage |
| Chân 37 | PA14/JTCK — GPIO/SWCLK |
| Chân 38 | PA15/JTDI — GPIO/SPI3_NSS/TIM2_CH1_ETR |
| Chân 39 | PB3/JTDO — GPIO/SPI3_SCK/TIM2_CH2 |
| Chân 40 | PB4/NJTRST — GPIO/SPI3_MISO |
| Chân 41 | PB5 — GPIO/I2C1_SMBA/SPI3_MOSI |
| Chân 42 | PB6 — GPIO/I2C1_SCL/USART1_TX |
| Chân 43 | PB7 — GPIO/I2C1_SDA/USART1_RX |
| Chân 44 | BOOT0 — Boot0 redundant bond (pull state) |
| Chân 45 | PB8 — GPIO/I2C1_SCL/TIM4_CH3 |
| Chân 46 | PB9 — GPIO/I2C1_SDA/TIM4_CH4 |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — Digital supply voltage |
| Chân 49 | PB14 — GPIO/SPI2_MISO/TIM1_CH2N (alt bond) |
| Chân 50 | PA0 — GPIO/WKUP/UART4_TX (alt bond) |
| Chân 51 | PC0 — GPIO/ADC_IN10 |
| Chân 52 | PC1 — GPIO/ADC_IN11 |
| Chân 53 | PC2 — GPIO/SPI2_MISO/ADC_IN12 |
| Chân 54 | PC3 — GPIO/SPI2_MOSI/ADC_IN13 |
| Chân 55 | VREFSD+/VSSA — ADC supply/ground |
| Chân 56 | VDDA — Analog supply voltage |
| Chân 57 | PA4 — GPIO alt bond |
| Chân 58 | PC4 — GPIO/ADC_IN14 |
| Chân 59 | PC5 — GPIO/ADC_IN15 |
| Chân 60 | PB0 — GPIO alt bond |
| Chân 61 | PB1 — GPIO alt bond |
| Chân 62 | PB2 — GPIO alt bond |
| Chân 63 | VSS — Ground |
| Chân 64 | VDD — Digital supply voltage |
Ứng dụng tiêu biểu
STM32F411RCT6 phù hợp cho 6 Áp dụngs: USB HID / CDC Peripheral Devices, Industrial Sensor Hubs, Portable Consumer Medical Devices, Small BLDC / Stepper Motor Control, IoT Edge Gateways and Hubs, Audio Processing and Synthesizers.
USB HID / CDC Peripheral Devices
The STM32F411RCT6 is ideal for USB Human-Interface Device and Communication Device Class bridges because its integrated USB 2.0 Full-Speed On-The-Go controller plus 4 KB endpoint SRAM eliminates the need for an external PHY. With 128 KB of on-chip SRAM, the part comfortably runs CDC-ACM plus HID stacks concurrently without external memory. Core0 (M4 with FPU) executes firmware at zero-wait-state 100 MHz via the ART accelerator, leaving headroom for enumeration and protocol handling in real time. Place the MCU within 25 mm of the USB connector and route D+/D- as a 90-ohm differential pair.
Được đề xuất
Industrial Sensor Hubs
The STM32F411RCT6 aggregates analog and digital sensor data via its 12-bit ADC (up to 2.4 MSPS) and multi-protocol serial interfaces, then forwards it over USB, SPI, or USART. With 256 KB Flash and 128 KB SRAM, complex sensor-fusion and FFT routines can run locally at 100 MHz without DMA contention. According to the STM32F411 datasheet, three I2C and three SPI buses allow fan-out to multiple sensors simultaneously. The wide -40C to +85C/105C/125C temperature range suits outdoor enclosures.
Được đề xuất
Portable Consumer Medical Devices
The STM32F411RCT6 fits battery-powered medical electronics: its 1.7-3.6 V supply window accepts a Li-Ion cell directly, and the integrated DMA controller (8 channels) lets the ADC scan multiple channels independently of the CPU. Low-power Run and Stop modes (a hallmark of the F4 Dynamic Efficiency line) extend battery life on standby. The single-precision FPU accelerates FIR/IIR filters used in heart-rate or pulse-oximetry algorithms.
Được đề xuất
Small BLDC / Stepper Motor Control
The STM32F411RCT6 supports 6-step or field-oriented control of small brushless DC and stepper motors through its up to 11 timers (including one 16-bit advanced timer with complementary PWM and dead-band generation). The Cortex-M4 FPU executes Clarke/Park transforms in single-cycle precision. With 256 KB Flash, advanced commutation algorithms and SoC estimators fit comfortably. STM32CubeMX makes pin-mux configuration straightforward for 3-shunt current sensing and Hall/encoder feedback inputs.
Được đề xuất
IoT Edge Gateways and Hubs
The STM32F411RCT6 makes a low-power edge node: connect to Wi-Fi or BLE modules via USART/SPI, run edge analytics in 128 KB SRAM, and bridge to upstream busses. The ART accelerator keeps STM32CubeMX-generated initialization overhead below 2 percent of CPU bandwidth, leaving the M4 to run modbus or MQTT-SN clients. USB OTG dual-role enables firmware upgrades via USB stick in the field, reducing service costs.
Được đề xuất
Audio Processing and Synthesizers
The STM32F411RCT6 is well-suited to low-cost audio products: its Cortex-M4 FPU plus DSP instructions accelerate MP3 decode, time-domain effects, or FIR equalization without external DSP hardware. Pair the MCU's I2S peripheral with an external codec such as the PCM5102APWR for 24-bit stereo output. With 256 KB Flash, code-fitting algorithms and wavetables for synthesis fit comfortably; USB MIDI can be added for no extra silicon via the integrated OTG controller.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32F411RCT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32F401RCT6 | STM32F405RGT6 | STM32F415RGT6 | STM32F103RCT6 | GD32F303RCT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M3 (no FPU) | ARM Cortex-M4 with FPU |
| Maximum Clock Frequency | 100 MHz | 84 MHz | 168 MHz | 168 MHz | 72 MHz | 120 MHz |
| Flash Memory | 256 KB | 256 KB | 1 MB | 1 MB | 256 KB | 256 KB |
| SRAM | 128 KB | 64 KB | 192 KB | 192 KB | 48 KB | 48 KB |
| Supply Voltage | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.0 V to 3.6 V | 2.6 V to 3.6 V |
| USB | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed + High-Speed OTG | USB 2.0 Full-Speed + High-Speed OTG | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
Bảo phân biệt quan trọng
- Highest SRAM headroom at this clock rating (vsSTM32F401RCT6)
- Cortex-M4 with FPU versus older M3 (vsSTM32F103RCT6)
- Dual-role USB OTG at lower price than F4+ family (vsSTM32F405RGT6)
- Cross-brand parity at lower cost (vsGD32F303RCT6)
Ghi chú thiết kế
The STM32F411RCT6 requires a 100 nF decoupling capacitor on each VDD pin pair within 5 mm of the package. Per ST's hardware design guide (AN4321), place one bulk 4.7 uF capacitor per VDD cluster. VREF+ should be tied directly to VDDA via a ferrite bead when using the ADC, otherwise noise on VDDA degrades ADC performance.
USB D+/D- traces must be routed as a 90-ohm differential pair with matched length tolerance of 150 mil. According to ST's hardware layout guidelines, route the pair as short as possible, maintain spacing to ground copper > 7 mil, and avoid the proximity of high-frequency nets such as SDIO clock. The MCU itself should sit within 25 mm of the USB connector.
Place the 8 MHz HSE crystal and its 20 pF load capacitors within 5 mm of OSC_IN and OSC_OUT. Use a guard ground around the crystal to suppress coupling from adjacent clocks. Per the STM32F411 reference design, configure the crystal's trace width to 12 mil and match the load capacitor location symmetrically. Boot pins BOOT0 and PB2/BOOT1 must be pulled to known state with 100 kohm resistors to ground.
A frequent mistake is powering the chip down without putting PA13/SWDIO and PA14/SWCLK in a defined state - leaving them floating can cause unintentional reset in the next power-up. Per AN2586, both debugger pins require either a 100 kohm pull-up to VDD or a 100 kohm pull-down to ground. Also, when using the BOOT0 pin, a noise spike below 50 ns can induce bootloader-mode entry.
Estimated: at maximum core activity (100 MHz, all peripherals clocked, M4 DSP instructions), the STM32F411RCT6 dissipates approximately 200 mW. The LQFP-64 has a typical theta_JA of 50 C/W on a 2-layer board with copper pour, so worst-case junction temperature rise is 10C above ambient. For industrial (+85C) applications, derate sustained peripheral activity at high temperatures. The internal thermal sensor (not provided in this part) should be substituted with external RTDs for precision protection.
Thông tin tuân thủ
RoHS compliant per ST product page. Consumer/industrial part - not AEC-Q100 qualified.
