Overview
The STM32F103RBT7 is a medium-density performance line microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M3 32-bit RISC core. This MCU operates at a maximum frequency of 72 MHz and offers a range of advanced features and peripherals. It is part of the STM32F103xx family, which is known for its high-performance capabilities and extensive set of I/Os and communication interfaces.
The device includes high-speed embedded memories such as up to 128 Kbytes of Flash memory and up to 20 Kbytes of SRAM. It supports a wide range of applications due to its versatile set of peripherals and interfaces.
Key Specifications
| Attribute | Value |
|---|---|
| Program Memory Size | 128 kB |
| Data Bus Width | 32 bit |
| Maximum Clock Frequency | 72 MHz |
| ADC Resolution | 12 bit |
| Number of ADCs | 2 (up to 16 channels) |
| Conversion Range | 0 to 3.6 V |
| Timers | Seven timers (including 3 x 16-bit timers, 1 x 16-bit motor control PWM timer, 2 watchdog timers, and a SysTick timer) |
| Communication Interfaces | Up to two I2C, up to three USARTs, up to two SPIs, one CAN interface (2.0B Active), and one USB 2.0 full-speed interface |
| Operating Temperature Range | -40 to +85°C or -40 to +105°C (extended temperature range) |
| Power Supply | 2.0 to 3.6 V |
| I/O Ports | Up to 80 fast I/O ports, almost all 5 V-tolerant |
| DMA Controller | 7-channel DMA controller |
| Debug Mode | Serial wire debug (SWD) and JTAG interfaces |
Key Features
- High-Performance Core: Arm® Cortex®-M3 32-bit RISC core with a maximum frequency of 72 MHz.
- Embedded Memories: Up to 128 Kbytes of Flash memory and up to 20 Kbytes of SRAM.
- Analog to Digital Converters (ADCs): Two 12-bit ADCs with up to 16 channels, dual-sample and hold capability, and a temperature sensor.
- Timers: Seven timers including three 16-bit timers, one 16-bit motor control PWM timer, two watchdog timers, and a SysTick timer.
- Communication Interfaces: Up to two I2C interfaces, up to three USARTs, up to two SPIs, one CAN interface (2.0B Active), and one USB 2.0 full-speed interface.
- DMA Controller: 7-channel DMA controller supporting peripherals like timers, ADC, SPIs, I2Cs, and USARTs.
- I/O Ports: Up to 80 fast I/O ports, almost all 5 V-tolerant.
- Debug Mode: Serial wire debug (SWD) and JTAG interfaces.
- Low-Power Modes: Sleep, Stop, and Standby modes for low-power applications.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication due to its CAN and USB interfaces.
- Consumer Electronics: Used in various consumer devices requiring high-performance processing and multiple communication interfaces.
- Medical Devices: Can be used in medical equipment that requires precise analog-to-digital conversion and reliable communication interfaces.
- Automotive Systems: Applicable in automotive systems for control and communication, leveraging its CAN interface and robust operating temperature range.
- IoT Devices: Ideal for Internet of Things (IoT) applications that need efficient processing, low power consumption, and multiple communication options.
Q & A
- What is the maximum clock frequency of the STM32F103RBT7?
The maximum clock frequency of the STM32F103RBT7 is 72 MHz.
- How much Flash memory does the STM32F103RBT7 have?
The STM32F103RBT7 has up to 128 Kbytes of Flash memory.
- What is the resolution of the ADCs in the STM32F103RBT7?
The ADCs in the STM32F103RBT7 have a resolution of 12 bits.
- How many communication interfaces does the STM32F103RBT7 support?
The STM32F103RBT7 supports up to nine communication interfaces, including I2C, USART, SPI, CAN, and USB.
- What is the operating temperature range of the STM32F103RBT7?
The operating temperature range of the STM32F103RBT7 is -40 to +85°C or -40 to +105°C (extended temperature range).
- Does the STM32F103RBT7 support low-power modes?
Yes, the STM32F103RBT7 supports Sleep, Stop, and Standby modes for low-power applications.
- How many I/O ports does the STM32F103RBT7 have?
The STM32F103RBT7 has up to 80 fast I/O ports, almost all of which are 5 V-tolerant.
- What debug interfaces are available on the STM32F103RBT7?
The STM32F103RBT7 supports Serial wire debug (SWD) and JTAG interfaces.
- Does the STM32F103RBT7 have a DMA controller?
Yes, the STM32F103RBT7 has a 7-channel DMA controller.
- What is the power supply range for the STM32F103RBT7?
The power supply range for the STM32F103RBT7 is 2.0 to 3.6 V.
