Overview
The STM32F303RBT7, produced by STMicroelectronics, is a member of the STM32F303xB/STM32F303xC family of microcontrollers. 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 integrates a memory protection unit (MPU), an embedded trace macrocell (ETM), and high-speed embedded memories including up to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM. The device is designed for low-power applications and features a comprehensive set of power-saving modes.
The STM32F303RBT7 offers a wide range of peripherals, including multiple ADCs, DACs, operational amplifiers, comparators, and various communication interfaces such as I2C, SPI, USART, UART, CAN, and USB. It operates in a temperature range of -40 to +85 °C or -40 to +105 °C, depending on the package, and is powered by a 2.0 to 3.6 V supply.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit CPU with FPU (72 MHz max) |
| Flash Memory | Up to 256 Kbytes |
| SRAM | Up to 40 Kbytes |
| ADCs | Up to four fast 12-bit ADCs (5 Msps) |
| DACs | Up to two 12-bit DAC channels |
| Operational Amplifiers | Four operational amplifiers |
| Comparators | Seven fast rail-to-rail analog comparators |
| Timers | Up to 13 timers, including one 32-bit timer and multiple 16-bit timers |
| Communication Interfaces | CAN, I2C, SPI, USART, UART, USB |
| Operating Voltage | 2.0 to 3.6 V |
| Operating Temperature | -40 to +85 °C or -40 to +105 °C |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- High-performance Arm® Cortex®-M4 32-bit CPU with FPU and DSP instructions
- Up to four fast 12-bit ADCs (5 Msps) and up to two 12-bit DAC channels
- Four operational amplifiers and seven fast rail-to-rail analog comparators
- Multiple timers, including one 32-bit timer and several 16-bit timers
- Advanced communication interfaces: CAN, I2C, SPI, USART, UART, USB
- Low-power modes: Sleep, Stop, and Standby
- Up to 87 fast I/Os and 24 capacitive sensing channels
- Calendar RTC with Alarm and periodic wakeup from Stop/Standby
- Internal 8 MHz RC with x 16 PLL option and internal 40 kHz oscillator
Applications
The STM32F303RBT7 is suitable for a wide range of applications due to its rich set of peripherals and low-power capabilities. Some of the key application areas include:
- Industrial automation and control systems
- Medical devices requiring precise analog measurements
- Automotive systems, especially those needing advanced motor control
- Consumer electronics, such as audio and video devices
- IoT devices requiring low power consumption and multiple communication interfaces
Q & A
- What is the core architecture of the STM32F303RBT7?
The STM32F303RBT7 is based on the Arm® Cortex®-M4 32-bit RISC core with FPU.
- What is the maximum operating frequency of the STM32F303RBT7?
The maximum operating frequency is up to 72 MHz.
- How much Flash and SRAM memory does the STM32F303RBT7 have?
The device has up to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM.
- What types of ADCs and DACs are available on the STM32F303RBT7?
The device features up to four fast 12-bit ADCs (5 Msps) and up to two 12-bit DAC channels.
- What communication interfaces are supported by the STM32F303RBT7?
The device supports CAN, I2C, SPI, USART, UART, and USB interfaces.
- What are the operating voltage and temperature ranges of the STM32F303RBT7?
The operating voltage range is 2.0 to 3.6 V, and the operating temperature range is -40 to +85 °C or -40 to +105 °C.
- Does the STM32F303RBT7 support low-power modes?
Yes, it supports Sleep, Stop, and Standby low-power modes.
- What types of timers are available on the STM32F303RBT7?
The device includes one 32-bit timer and multiple 16-bit timers, as well as advanced motor control timers.
- Does the STM32F303RBT7 have capacitive sensing capabilities?
Yes, it supports up to 24 capacitive sensing channels.
- Is the STM32F303RBT7 RoHS compliant?
Yes, the STM32F303RBT7 is RoHS compliant.
