Overview
The STM32F303RET7 is a microcontroller from the STM32F303xD/E family, produced by STMicroelectronics. It is based on the high-performance ARM® Cortex®-M4 32-bit RISC core, operating at a frequency of 72 MHz and featuring a floating point unit (FPU), a memory protection unit (MPU), and an embedded trace macrocell (ETM). This microcontroller is designed for a wide range of applications requiring high performance, low power consumption, and advanced peripherals.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® Cortex®-M4 32-bit CPU with 72 MHz FPU |
| Operating Voltage | 2.0 V to 3.6 V |
| Flash Memory | Up to 512 Kbytes |
| SRAM | 64 Kbytes with HW parity check on the first 32 Kbytes |
| Timers | Up to 14 timers: One 32-bit timer, two 16-bit timers, and advanced motor control timers |
| ADCs | Four 12-bit ADCs (5 Msps), up to 40 channels |
| DACs | Two 12-bit DAC channels |
| Comparators | Seven ultra-fast rail-to-rail analog comparators |
| Operational Amplifiers | Four operational amplifiers |
| Communication Interfaces | CAN, up to three I2C, up to four SPIs, up to five USART/UARTs, USB 2.0 full-speed interface |
| Operating Temperature | -40°C to +85°C or -40°C to +105°C |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- High-Performance Core: ARM® Cortex®-M4 32-bit CPU with 72 MHz FPU, single-cycle multiplication, and HW division.
- Memory and Storage: Up to 512 Kbytes of Flash memory, 64 Kbytes of SRAM, and a routine booster with 16 Kbytes of SRAM.
- Analog Peripherals: Four 12-bit ADCs, two 12-bit DAC channels, seven ultra-fast rail-to-rail analog comparators, and four operational amplifiers.
- Timers and Counters: Up to 14 timers including one 32-bit timer, two 16-bit timers, and advanced motor control timers.
- Communication Interfaces: CAN, up to three I2C, up to four SPIs, up to five USART/UARTs, and a USB 2.0 full-speed interface.
- Low-Power Modes: Sleep, Stop, and Standby modes for low-power applications.
- Clock Management: 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 8 MHz RC with x 16 PLL option, and internal 40 kHz oscillator.
- Additional Features: Calendar RTC with Alarm, periodic wakeup from Stop/Standby, and a 96-bit unique ID.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication protocols like CAN and Modbus.
- Medical Devices: Can be used in medical equipment requiring precise analog measurements and low power consumption.
- Consumer Electronics: Ideal for applications such as audio devices, touch sensing interfaces, and USB-enabled peripherals.
- Automotive Systems: Applicable in automotive control units, infotainment systems, and safety-critical applications.
- IoT Devices: Suitable for Internet of Things (IoT) devices requiring advanced communication interfaces and low power modes.
Q & A
- What is the core architecture of the STM32F303RET7?
The STM32F303RET7 is based on the ARM® Cortex®-M4 32-bit RISC core with a 72 MHz FPU.
- What is the operating voltage range of the STM32F303RET7?
The operating voltage range is from 2.0 V to 3.6 V.
- How much Flash and SRAM memory does the STM32F303RET7 have?
The device has up to 512 Kbytes of Flash memory and 64 Kbytes of SRAM.
- What types of timers are available on the STM32F303RET7?
The device features up to 14 timers, including one 32-bit timer, two 16-bit timers, and advanced motor control timers.
- What are the key analog peripherals of the STM32F303RET7?
The device includes four 12-bit ADCs, two 12-bit DAC channels, seven ultra-fast rail-to-rail analog comparators, and four operational amplifiers.
- What communication interfaces are supported by the STM32F303RET7?
The device supports CAN, up to three I2C, up to four SPIs, up to five USART/UARTs, and a USB 2.0 full-speed interface.
- What are the low-power modes available on the STM32F303RET7?
The device offers Sleep, Stop, and Standby modes for low-power applications.
- What is the operating temperature range of the STM32F303RET7?
The operating temperature range is from -40°C to +85°C or -40°C to +105°C.
- What package options are available for the STM32F303RET7?
The device is available in an LQFP 64 10x10x1.4 mm package.
- Does the STM32F303RET7 support touch sensing?
Yes, the device supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- Is the STM32F303RET7 suitable for automotive applications?
Yes, it is suitable for automotive control units, infotainment systems, and safety-critical applications due to its robust features and operating temperature range.
