Overview
The STM32F105R8T6TR is a microcontroller from the STM32F105xx and STM32F107xx connectivity line family, manufactured by STMicroelectronics. This device is based on the high-performance ARM® 32-bit Cortex®-M3 CPU, operating at a maximum frequency of 72 MHz. It features high-speed embedded memories, including up to 64 Kbytes of Flash memory and 64 Kbytes of general-purpose SRAM. The microcontroller is designed for a wide range of applications due to its extensive set of enhanced I/Os and peripherals connected to two APB buses.
The device operates in a temperature range of –40 to +105 °C and supports a power supply range of 2.0 to 3.6 V. It also includes various power-saving modes, making it suitable for low-power applications.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM® 32-bit Cortex®-M3 CPU |
| Maximum Frequency | 72 MHz |
| Flash Memory | Up to 64 Kbytes |
| SRAM | 64 Kbytes |
| ADCs | 2 × 12-bit, 1 µs A/D converters (16 channels) |
| Timers | Up to 10 timers (including 4 × 16-bit timers, 1 × 16-bit motor control PWM timer, 2 × watchdog timers, SysTick timer) |
| Communication Interfaces | Up to 14 interfaces (including 2 × I2C, 3 × SPI, 5 × USART, 2 × CAN, USB 2.0 OTG, Ethernet MAC) |
| Operating Temperature | –40 to +105 °C |
| Power Supply | 2.0 to 3.6 V |
| Package Type | LQFP64 10 × 10 mm |
Key Features
- High-Performance Core: ARM® 32-bit Cortex®-M3 CPU with a maximum frequency of 72 MHz.
- Memory: Up to 64 Kbytes of Flash memory and 64 Kbytes of general-purpose SRAM.
- Peripherals: Extensive range of enhanced I/Os and peripherals, including ADCs, DACs, timers, and communication interfaces.
- Communication Interfaces: Includes up to 2 I2C, 3 SPI, 5 USART, 2 CAN, USB 2.0 OTG, and Ethernet MAC.
- Power Management: Sleep, Stop, and Standby modes for low-power applications.
- Temperature Range: Operates in the –40 to +105 °C temperature range.
- I/O Ports: Up to 80 fast I/O ports, with 51/80 I/Os mappable on 16 external interrupt vectors and almost all 5 V-tolerant.
- Debugging: Serial wire debug (SWD) and JTAG interfaces, along with Cortex®-M3 Embedded Trace Macrocell™.
Applications
The STM32F105R8T6TR is suitable for a wide range of applications, including:
- Motor drives and application control
- Medical and handheld equipment
- Industrial applications, PLCs, inverters, printers, and scanners
- Alarm systems, video intercom, HVAC, and home audio equipment
Q & A
- What is the core of the STM32F105R8T6TR microcontroller?
The core is the ARM® 32-bit Cortex®-M3 CPU.
- What is the maximum operating frequency of the STM32F105R8T6TR?
The maximum operating frequency is 72 MHz.
- How much Flash memory does the STM32F105R8T6TR have?
It has up to 64 Kbytes of Flash memory.
- What types of communication interfaces are available on the STM32F105R8T6TR?
It includes I2C, SPI, USART, CAN, USB 2.0 OTG, and Ethernet MAC interfaces.
- What is the operating temperature range of the STM32F105R8T6TR?
The operating temperature range is –40 to +105 °C.
- What power-saving modes are available on the STM32F105R8T6TR?
The device supports Sleep, Stop, and Standby modes for low-power applications.
- How many I/O ports does the STM32F105R8T6TR have?
It has up to 80 fast I/O ports.
- What debugging interfaces are available on the STM32F105R8T6TR?
The device supports serial wire debug (SWD) and JTAG interfaces, along with Cortex®-M3 Embedded Trace Macrocell™.
- What are some typical applications of the STM32F105R8T6TR?
It is used in motor drives, medical and handheld equipment, industrial applications, alarm systems, and more.
- What is the package type of the STM32F105R8T6TR?
The package type is LQFP64 10 × 10 mm.
