Overview
The STM32F303CBT6 is a high-performance microcontroller from STMicroelectronics, part of the STM32F303xB/STM32F303xC family. It is based on the Arm® Cortex®-M4 32-bit RISC core with a floating-point unit (FPU), operating at a frequency of up to 72 MHz. The device includes a memory protection unit (MPU) and an embedded trace macrocell (ETM). It features high-speed embedded memories, including up to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM, along with an extensive range of enhanced I/Os and peripherals connected to two APB buses.
The STM32F303CBT6 operates within a temperature range of -40 to +85 °C and -40 to +105 °C, with a power supply voltage range of 2.0 to 3.6 V. It supports various power-saving modes, making it suitable for low-power applications. The device is available in several package options, ranging from 48 pins to 100 pins.
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 |
| ADCs | Up to four fast 12-bit ADCs (5 Msps) |
| DAC Channels | Up to two 12-bit DAC channels |
| Timers | Up to five general-purpose 16-bit timers, one general-purpose 32-bit timer, and two timers dedicated to motor control |
| Communication Interfaces | Up to two I2Cs, up to three SPIs, three USARTs, up to two UARTs, CAN, and USB |
| Operating Temperature | -40 to +85 °C and -40 to +105 °C |
| Power Supply Voltage | 2.0 to 3.6 V |
| Package Options | 48 pins to 100 pins |
| Low-Power Modes | Sleep, Stop, and Standby |
Key Features
- Core: 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).
- High-speed embedded memories: up to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM.
- Extensive range of enhanced I/Os and peripherals connected to two APB buses.
- Up to four fast 12-bit ADCs (5 Msps), seven comparators, four operational amplifiers, and up to two DAC channels.
- Low-power RTC, up to five general-purpose 16-bit timers, one general-purpose 32-bit timer, and two timers dedicated to motor control.
- Standard and advanced communication interfaces: up to two I2Cs, up to three SPIs (with multiplexed full-duplex I2Ss), three USARTs, up to two UARTs, CAN, and USB.
- Clock management: 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC with calibration, internal 8 MHz RC with x 16 PLL option, and internal 40 kHz oscillator.
- Up to 87 fast I/Os, all mappable on external interrupt vectors, and several 5 V-tolerant I/Os.
- 12-channel DMA controller and interconnect matrix.
- Low-power modes: Sleep, Stop, and Standby, with VBAT supply for RTC and backup registers.
Applications
The STM32F303CBT6 is versatile and can be used in a variety of applications, including:
- Industrial automation and control systems.
- Medical devices requiring precise analog and digital signal processing.
- Automotive systems, particularly those needing advanced motor control and communication interfaces.
- Consumer electronics, such as audio devices and touch-sensitive interfaces.
- IoT devices that require low power consumption and advanced communication capabilities.
Q & A
- What is the core architecture of the STM32F303CBT6?
The STM32F303CBT6 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 capacity of the STM32F303CBT6?
The device features up to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM).
- What are the key analog peripherals of the STM32F303CBT6?
The device includes up to four fast 12-bit ADCs, seven comparators, four operational amplifiers, and up to two DAC channels).
- What communication interfaces are available on the STM32F303CBT6?
The device features up to two I2Cs, up to three SPIs (with multiplexed full-duplex I2Ss), three USARTs, up to two UARTs, CAN, and USB).
- What are the operating temperature and voltage ranges of the STM32F303CBT6?
The device operates in the -40 to +85 °C and -40 to +105 °C temperature ranges from a 2.0 to 3.6 V power supply).
- What are the low-power modes available on the STM32F303CBT6?
The device supports Sleep, Stop, and Standby low-power modes, with VBAT supply for RTC and backup registers).
- What is the clock management capability of the STM32F303CBT6?
The device includes a 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC with calibration, internal 8 MHz RC with x 16 PLL option, and internal 40 kHz oscillator).
- How many I/Os does the STM32F303CBT6 have?
The device features up to 87 fast I/Os, all mappable on external interrupt vectors, and several 5 V-tolerant I/Os).
- What is the role of the DMA controller in the STM32F303CBT6?
The device includes a 12-channel DMA controller to manage data transfer between peripherals and memory).
- What are some typical applications of the STM32F303CBT6?
The device is suitable for industrial automation, medical devices, automotive systems, consumer electronics, and IoT devices).
