Overview
The STM32F302CBT6 is a mixed-signal microcontroller from STMicroelectronics, based on the Arm Cortex-M4 32-bit CPU with a Floating Point Unit (FPU). This MCU operates at a maximum frequency of 72 MHz and includes single-cycle multiplication, hardware division, DSP instructions, and a Memory Protection Unit (MPU). It is designed to offer a balance of performance, power efficiency, and peripheral functionality, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm Cortex-M4 32-bit CPU with FPU, 72 MHz max |
| Memory | 128 to 256 Kbytes of Flash memory, up to 40 Kbytes of SRAM |
| Voltage Range | 2.0 V to 3.6 V |
| ADCs | Two 12-bit ADCs, up to 17 channels, 0.20 µS conversion time |
| DAC | One 12-bit DAC channel |
| Analog Comparators | Four fast rail-to-rail analog comparators |
| Operational Amplifiers | Two operational amplifiers with programmable gain |
| Timers | Up to 11 timers including 32-bit and 16-bit timers |
| Communication Interfaces | CAN 2.0B, up to five USART/UARTs, up to three SPIs, USB 2.0 full speed |
| Temperature Range | -40 to 85 °C or -40 to 105 °C (with a junction temperature of 125 °C) |
| Package | LQFP64 (10 × 10 mm), LQFP100 (14 × 14 mm), LQFP48 (7 × 7 mm), WLCSP100 (0.4 mm pitch) |
Key Features
- Arm Cortex-M4 core with FPU and DSP instructions for enhanced processing capabilities.
- Up to 256 Kbytes of Flash memory and 40 Kbytes of SRAM.
- Low-power modes: Sleep, Stop, and Standby.
- VBAT supply for RTC and backup registers.
- Internal 8 MHz RC oscillator with x16 PLL option and 32 kHz oscillator for RTC.
- Up to 87 fast I/Os, all mappable on external interrupt vectors.
- 12-channel DMA controller.
- Two ultra-fast 12-bit ADCs with 5 MSPS and one 12-bit DAC channel.
- Four fast rail-to-rail analog comparators and two operational amplifiers with programmable gain.
- Full-speed USB and CAN 2.0B communication interfaces.
- Calendar RTC with alarm and periodic wakeup from Stop/Standby.
Applications
The STM32F302CBT6 is versatile and can be used in various applications, including:
- Motor control systems, leveraging the fast 144 MHz motor control timers.
- Industrial automation, benefiting from the CAN 2.0B and USB 2.0 interfaces.
- Medical devices, utilizing the high precision ADCs and DACs.
- Consumer electronics, such as smart home devices and wearables, due to its low power consumption and rich peripheral set.
- Automotive systems, where the temperature range and robust communication interfaces are advantageous.
Q & A
- What is the core of the STM32F302CBT6?
The core is an Arm Cortex-M4 32-bit CPU with a Floating Point Unit (FPU), running at up to 72 MHz. - What is the memory configuration of the STM32F302CBT6?
It has 128 to 256 Kbytes of Flash memory and up to 40 Kbytes of SRAM. - What is the voltage range for the STM32F302CBT6?
The voltage range is from 2.0 V to 3.6 V. - What types of ADCs are available on the STM32F302CBT6?
There are two 12-bit ADCs with up to 17 channels and a conversion time of 0.20 µS. - Does the STM32F302CBT6 have any operational amplifiers?
Yes, it has two operational amplifiers with programmable gain. - What communication interfaces are available on the STM32F302CBT6?
The MCU includes CAN 2.0B, up to five USART/UARTs, up to three SPIs, and a USB 2.0 full-speed interface. - What are the low-power modes available on the STM32F302CBT6?
The low-power modes include Sleep, Stop, and Standby. - Is the STM32F302CBT6 suitable for motor control applications?
Yes, it is suitable due to its fast 144 MHz motor control timers. - What is the temperature range for the STM32F302CBT6?
The temperature range is from -40 to 85 °C or from -40 to 105 °C (with a junction temperature of 125 °C). - What packages are available for the STM32F302CBT6?
The available packages include LQFP64, LQFP100, LQFP48, and WLCSP100.
