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STMicroelectronics STM32F401RDT6
- Part No.:
- STM32F401RDT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F401RDT6.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,909
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Product details
Overview
STM32F401RDT6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, delivering 105 DMIPS at 84 MHz, featuring 512 KB Flash, 96 KB SRAM, and integrated USB 2.0 FS OTG controller with on-chip PHY. It supports up to 81 I/Os (78 fast, 5 V-tolerant), includes a 12-bit 2.4 MSPS ADC with 16 channels, and targets embedded control applications requiring real-time performance and low-power operation in industrial sensors and motor control interfaces.
For engineers reviewing the STM32F401RDT6 datasheet, STM32F401RDT6 pinout, STM32F401RDT6 application, or STM32F401RDT6 equivalent, key selection criteria include its ART Accelerator-enabled zero-wait-state flash execution, dual low-power stop modes (down to 10 µA), 32 kHz RTC oscillator with calibration, and full-duplex SPI/I2S mux for audio-class signal processing.
Technical Context
The device integrates an adaptive real-time accelerator (ART Accelerator) that enables deterministic 0-wait-state execution from Flash memory at 84 MHz, eliminating instruction cache penalties. Its memory protection unit (MPU) supports secure partitioning of code and data spaces for robust firmware isolation.
It features a multi-AHB bus matrix enabling concurrent access to Flash, SRAM, and peripherals, and includes a 16-stream DMA controller with FIFOs and burst support-critical for high-throughput sensor data acquisition and USB/SDIO streaming without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 105 DMIPS @ 84 MHz - enables floating-point math for motor control and digital filtering without external coprocessor |
| Flash / RAM | 512 KB Flash / 96 KB SRAM - sufficient for complex real-time firmware with bootloader, OTA update partition, and buffer-intensive protocols |
| ADC | 12-bit, 2.4 MSPS, 16-channel - supports simultaneous sampling of multiple analog sensors (e.g., current/voltage/temp) in power monitoring systems |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip PHY - eliminates need for external transceiver; supports device/host/OTG roles in portable diagnostics tools |
| Low-Power Modes | Stop mode down to 10 µA (Deep Power Down) - extends battery life in always-on edge nodes with periodic wake-up via RTC or external interrupt |
| I/O Voltage Tolerance | 5 V-tolerant on all GPIOs - simplifies level-shifting design when interfacing with legacy 5 V peripherals or industrial I/O modules |
| Clock Sources | 4–26 MHz HSE + 32 kHz LSE + factory-trimmed 16 MHz HSI - ensures precise timing for communication stacks (e.g., USB frame sync, LIN baud rate accuracy) |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant and ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Dual-domain supply (digital/analog) with dedicated VDDA/VSSA reduces noise coupling into ADC reference path |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O ports | Up to 81 GPIOs; 78 support 42 MHz toggle rate; all 5 V-tolerant - enables direct connection to industrial logic without level shifters |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Supports 4–26 MHz crystals for precise system clock generation; essential for USB timing compliance and RTC accuracy |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with push-button or supervisor IC reset assertion |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated PHY eliminates external transceiver; requires only 1.5 kΩ pull-up on DP for device enumeration |
| BOOT0 | Boot mode selection | High at power-up selects system memory boot (for DFU); enables field firmware recovery without debugger |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator | Enables 0-wait-state execution from Flash at 84 MHz - eliminates cache misses and guarantees deterministic interrupt latency for real-time control loops |
| Adaptive Low-Power Architecture | Three-tiered stop modes (Stop, Deep Power Down, Standby) with sub-µA RTC backup - supports battery-powered devices with multi-year shelf life |
| Flexible Communication Peripherals | Up to 4 SPIs (42 Mbit/s), 3 USARTs (10.5 Mbit/s), 3 I2Cs, SDIO, and USB OTG - accommodates mixed-protocol BOMs (e.g., BLE module + SD card + display interface) |
| Hardware Security Foundation | 96-bit unique ID + CRC calculation unit - enables secure device authentication and firmware image integrity verification in IoT deployments |
| Analog Subsystem Integration | 12-bit ADC with hardware oversampling + internal temperature sensor - allows closed-loop thermal management without external sensing components |
Applications
| Industrial Motor Control | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Compact BLDC motor driver with current sensing, position feedback, and USB-based configuration. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM timers (TIM1/TIM8), ADC sampling, and USB CDC interface for parameter tuning. Use Value: ART Accelerator ensures jitter-free 20 kHz PWM generation while servicing USB interrupts; 5 V-tolerant GPIOs interface directly with gate drivers and Hall sensors. | Use Scenario: Battery-powered wearable device aggregating ECG, SpO₂, and motion data for Bluetooth forwarding. IC Role / Device Role / Timing Role: Central data concentrator performing ADC oversampling, sensor fusion, and USB HID emulation for PC-side diagnostics. Use Value: 10 µA Stop mode extends 2-week battery life; integrated USB PHY enables plug-and-play firmware updates without external components. |
| Smart Building Environmental Node | Automated Test Equipment (ATE) Front-End |
Use Scenario: Wireless HVAC node measuring temperature, humidity, CO₂, and airflow with local actuation. IC Role / Device Role / Timing Role: Real-time environmental data processor with I²C sensor hub, PWM fan control, and RTC-triggered wake-up for periodic reporting. Use Value: Dual 32 kHz oscillators (LSE + calibrated LSI) maintain ±1 ppm RTC accuracy across temperature; 96 KB SRAM buffers multi-sensor logs during RF transmission gaps. | Use Scenario: Modular test fixture acquiring analog waveforms, generating stimulus signals, and communicating results via USB. IC Role / Device Role / Timing Role: High-speed data acquisition engine using DMA-driven ADC + timer-triggered DAC output, synchronized via shared AHB bus. Use Value: 2.4 MSPS ADC with hardware averaging achieves 14-bit ENOB; multi-AHB matrix prevents bus contention between USB streaming and real-time waveform generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F411REY6TR | Same Cortex-M4 core, but 512 KB Flash/128 KB SRAM, higher max clock (100 MHz), no USB OTG PHY (requires external transceiver) | Better suited for compute-heavy tasks (e.g., FFT-based spectral analysis), less suitable for USB-connected field instruments | Select when SRAM headroom > USB integration priority; verify external PHY sourcing and layout complexity |
| STM32G431KBT6 | Cortex-M4 with FPU, 128 KB Flash/32 KB SRAM, advanced analog (2x 12-bit ADC, 3x comparators), no USB OTG | Optimized for analog-rich applications (e.g., power supply monitoring), lacks native USB device capability | Prefer for cost-sensitive, analog-dense designs where USB is handled by companion MCU or removed entirely |
Compared with STM32F411REY6TR and STM32G431KBT6, the STM32F401RDT6 uniquely balances USB OTG integration, 5 V-tolerant I/O, and ultra-low-power stop modes - making it optimal for compact, battery-aware field devices requiring direct USB connectivity without external components.
Availability
STM32F401RDT6 is available at Aetrix Electronics and suitable for industrial motor control, portable medical sensors, smart building environmental nodes, and automated test equipment front-ends requiring stable component supply across extended production lifecycles.
Supply support for STM32F401RDT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32F4 series targets high-performance embedded applications demanding DSP capability, rich connectivity, and energy efficiency - designed specifically for industrial automation, consumer electronics, and IoT edge nodes.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F401RDT6 operates at up to 84 MHz using its internal PLL driven by the HSE (4–26 MHz) or HSI (16 MHz) oscillator. The ART Accelerator enables zero-wait-state execution from Flash memory at this frequency, eliminating instruction fetch stalls and ensuring deterministic real-time behavior without external cache.
Does it support USB device functionality without external components?
Yes - the STM32F401RDT6 integrates a full-speed USB 2.0 OTG controller with an on-chip PHY. Only standard USB termination (1.5 kΩ pull-up on DP) and proper PCB layout (90 Ω differential impedance) are required; no external transceiver or level shifter is needed for basic USB device operation.
How many ADC channels are available and what is their effective resolution?
It features one 12-bit ADC with up to 16 external input channels and hardware oversampling capability. At 2.4 MSPS sampling rate, typical effective resolution is 12 bits; with 16x oversampling and decimation, ENOB improves to ~14 bits - validated in ST's AN4073 application note for precision sensor measurement.
What debug interfaces are supported and what are their physical requirements?
The device supports Serial Wire Debug (SWD) and JTAG via dedicated pins (SWCLK, SWDIO, JTCK, JTDI, JTMS, JTDO). SWD is recommended for minimal pin count (2-wire), requiring only pull-ups on SWDIO and SWCLK; JTAG uses 5 pins and supports boundary scan. Both interfaces operate at core voltage (1.7–3.6 V) with no level translation needed.
STM32F401RDT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 84MHz
- Connectivity:
- I2C, IrDA, LINbus, SDIO, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F401RDT6 FAQ
1.How can I place an order for STM32F401RDT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F401RDT6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F401RDT6 reliable?
The price and inventory of STM32F401RDT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F401RDT6 is usually 5 days.
3.What payment methods are accepted for STM32F401RDT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F401RDT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F401RDT6?
STM32F401RDT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F401RDT6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F401RDT6?
For technical support, including STM32F401RDT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F401RDT6 requirements.
6.How does Aetrix verify that STM32F401RDT6 is sourced from the original manufacturer or authorized distributors?
All STM32F401RDT6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F401RDT6 meets industry standards.
7.What is the process for return or replacement of STM32F401RDT6?
All STM32F401RDT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F401RDT6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F401RDT6 part is unused and in its original packaging.
Return procedure for STM32F401RDT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F401RDT6 Tags
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