Overview
The STM32F401RET6 is a high-performance 32-bit microcontroller from STMicroelectronics, based on the ARM® Cortex®-M4 processor. This microcontroller operates at a frequency of up to 84 MHz and features a Floating Point Unit (FPU) for single-precision data processing and a full set of DSP instructions. It also includes a memory protection unit (MPU) to enhance application security. The device is equipped with 512 Kbytes of Flash memory and 96 Kbytes of SRAM, along with an extensive range of enhanced I/Os and peripherals connected to multiple bus systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Core | ARM® Cortex®-M4 32-bit RISC core |
| Maximum Frequency | Up to 84 MHz |
| Flash Memory | Up to 512 Kbytes |
| SRAM | Up to 96 Kbytes |
| Supply Voltage | 1.7 V to 3.6 V |
| Power Consumption (Run) | 146 µA/MHz (peripheral off) |
| Power Consumption (Stop Mode) | 42 µA Typ @ 25°C; 65 µA max @25 °C |
| Power Consumption (Deep Power Down Mode) | Down to 10 µA @ 25 °C; 30 µA max @25 °C |
| ADC | 1 × 12-bit, 2.4 MSPS, up to 16 channels |
| Timers | Up to 11 timers: 6 × 16-bit, 2 × 32-bit |
| Communication Interfaces | Up to 3 × I2C, up to 4 × SPI, up to 3 × USART, SDIO, USB 2.0 OTG |
| I/O Ports | Up to 81 I/O ports with interrupt capability, up to 78 fast I/Os up to 42 MHz |
| Package Type | LQFP-64 |
Key Features
- Core and Performance: ARM® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 84 MHz, and DSP instructions.
- Memories: Up to 512 Kbytes of Flash memory and up to 96 Kbytes of SRAM.
- Clock and Supply Management: 1.7 V to 3.6 V application supply and I/Os, POR, PDR, PVD, and BOR, 4-to-26 MHz crystal oscillator, internal 16 MHz factory-trimmed RC, and 32 kHz oscillator for RTC with calibration.
- Power Consumption: Low power modes including Run, Stop, and Deep power down modes with respective power consumption figures.
- ADC and Timers: 1 × 12-bit, 2.4 MSPS ADC with up to 16 channels, and up to 11 timers including six 16-bit and two 32-bit timers.
- Communication Interfaces: Up to three I2C interfaces, up to four SPIs, up to three USARTs, SDIO interface, and USB 2.0 OTG full-speed device/host/OTG controller.
- I/O and Peripherals: Up to 81 I/O ports with interrupt capability, up to 78 fast I/Os up to 42 MHz, and all I/O ports are 5 V-tolerant.
Applications
The STM32F401RET6 microcontroller is suitable for a wide range of applications due to its high performance, low power consumption, and extensive peripheral set. Some typical applications include:
- Industrial Automation: Motor control, power management, and industrial communication protocols.
- Consumer Electronics: Audio and video processing, USB connectivity, and low-power devices.
- Medical Devices: Portable medical devices requiring high performance and low power consumption.
- Automotive Systems: In-vehicle infotainment, driver assistance systems, and automotive control units.
- IoT and Wearables: Internet of Things (IoT) devices, wearables, and other low-power, high-performance applications.
Q & A
- What is the maximum operating frequency of the STM32F401RET6 microcontroller?
The maximum operating frequency of the STM32F401RET6 microcontroller is up to 84 MHz.
- How much Flash and SRAM memory does the STM32F401RET6 have?
The STM32F401RET6 has up to 512 Kbytes of Flash memory and up to 96 Kbytes of SRAM.
- What is the supply voltage range for the STM32F401RET6?
The supply voltage range for the STM32F401RET6 is from 1.7 V to 3.6 V.
- What types of communication interfaces are available on the STM32F401RET6?
The STM32F401RET6 features up to three I2C interfaces, up to four SPIs, up to three USARTs, an SDIO interface, and a USB 2.0 OTG full-speed device/host/OTG controller.
- How many I/O ports does the STM32F401RET6 have?
The STM32F401RET6 has up to 81 I/O ports with interrupt capability, with up to 78 fast I/Os up to 42 MHz.
- What is the power consumption in the Run mode of the STM32F401RET6?
The power consumption in the Run mode is 146 µA/MHz (peripheral off).
- Does the STM32F401RET6 support low-power modes?
Yes, the STM32F401RET6 supports low-power modes including Stop and Deep power down modes with respective power consumption figures.
- What type of package is the STM32F401RET6 available in?
The STM32F401RET6 is available in the LQFP-64 package.
- Does the STM32F401RET6 have any specific features for audio applications?
Yes, the STM32F401RET6 features two full-duplex I2S peripherals that can be clocked via a dedicated internal audio PLL or an external clock to achieve audio class accuracy.
- Is the STM32F401RET6 suitable for industrial applications?
Yes, the STM32F401RET6 is suitable for industrial applications due to its high performance, low power consumption, and extensive peripheral set including timers, ADC, and communication interfaces.
