Overview
The STM32F303RBT6 is a microcontroller from the STM32F303xB/STM32F303xC family, produced by STMicroelectronics. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core with a floating point unit (FPU), operating at a frequency of up to 72 MHz. This microcontroller is designed for a wide range of applications requiring high performance, low power consumption, and advanced peripherals.
The device features a comprehensive set of peripherals, including high-speed embedded memories, advanced communication interfaces, and various timers and converters. It operates within a temperature range of -40 to +85 °C and is powered by a 2.0 to 3.6 V supply. The STM32F303RBT6 is available in several package options, making it versatile for different design needs.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit CPU with FPU (72 MHz max) |
| Flash Memory | 128 to 256 Kbytes |
| SRAM | Up to 40 Kbytes with HW parity check on the first 16 Kbytes |
| Routine Booster | 8 Kbytes of SRAM on instruction and data bus with HW parity check (CCM) |
| Voltage Range | 2.0 V to 3.6 V |
| Operating Temperature | -40 to +85 °C |
| ADCs | Four 12-bit ADCs (up to 39 channels) with selectable resolution |
| DAC Channels | Two 12-bit DAC channels |
| Comparators | Seven fast rail-to-rail analog comparators |
| Operational Amplifiers | Four operational amplifiers in PGA mode |
| Timers | Up to 13 timers including 32-bit and 16-bit timers |
| Communication Interfaces | CAN, I2C, SPI, USART/UART, USB 2.0 full-speed interface |
| Package Options | Available in LQFP64, LQFP100, and other packages |
Key Features
- High-performance Arm® Cortex®-M4 32-bit CPU with FPU, single-cycle multiplication and HW division, 90 DMIPS (from CCM), DSP instruction, and MPU (memory protection unit)
- Low-power modes: Sleep, Stop, and Standby, with VBAT supply for RTC and backup registers
- Advanced peripherals including four 12-bit ADCs, two 12-bit DAC channels, seven fast rail-to-rail analog comparators, and four operational amplifiers
- Extensive communication interfaces: CAN, I2C, SPI, USART/UART, and USB 2.0 full-speed interface
- Up to 13 timers, including 32-bit and 16-bit timers with various functionalities
- Clock management with 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC, and internal oscillators
- Up to 87 fast I/Os, all mappable on external interrupt vectors, with several 5 V-tolerant I/Os
Applications
The STM32F303RBT6 is suitable for a wide range of applications due to its high performance, low power consumption, and rich set of peripherals. Some of the key application areas include:
- Industrial automation and control systems
- Medical devices requiring precise analog measurements
- Automotive systems, including motor control and sensor interfaces
- Consumer electronics, such as audio and waveform generation
- IoT devices requiring advanced communication interfaces and low power modes
Q & A
- What is the core architecture of the STM32F303RBT6?
The STM32F303RBT6 is based on the Arm® Cortex®-M4 32-bit RISC core with a floating point unit (FPU), operating at up to 72 MHz.
- What is the memory configuration of the STM32F303RBT6?
The device features 128 to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM, with HW parity check on the first 16 Kbytes.
- What are the operating voltage and temperature ranges of the STM32F303RBT6?
The device operates within a voltage range of 2.0 to 3.6 V and a temperature range of -40 to +85 °C.
- What types of ADCs and DACs are available on the STM32F303RBT6?
The device includes four 12-bit ADCs and two 12-bit DAC channels.
- What communication interfaces are supported by the STM32F303RBT6?
The device supports CAN, I2C, SPI, USART/UART, and USB 2.0 full-speed interface.
- Does the STM32F303RBT6 support low-power modes?
Yes, the device supports low-power modes including Sleep, Stop, and Standby, with VBAT supply for RTC and backup registers.
- What types of timers are available on the STM32F303RBT6?
The device includes up to 13 timers, including 32-bit and 16-bit timers with various functionalities.
- Is the STM32F303RBT6 RoHS compliant?
Yes, the STM32F303RBT6 is RoHS compliant.
- What are the package options for the STM32F303RBT6?
The device is available in various packages, including LQFP64, LQFP100, and others.
- What is the purpose of the routine booster in the STM32F303RBT6?
The routine booster is an 8 Kbytes SRAM on the instruction and data bus, with HW parity check (CCM), designed to enhance performance.
- How many fast I/Os does the STM32F303RBT6 have?
The device has up to 87 fast I/Os, all mappable on external interrupt vectors, with several 5 V-tolerant I/Os.
