Overview
The STM32F103RET7 is a high-performance microcontroller from STMicroelectronics, part of the STM32F103xC, STM32F103xD, and STM32F103xE family. It is based on the ARM® 32-bit Cortex®-M3 CPU, operating at a maximum frequency of 72 MHz. This microcontroller is designed for a wide range of applications due to its extensive set of peripherals and low-power capabilities. It features high-speed embedded memories, including up to 512 Kbytes of Flash memory and up to 64 Kbytes of SRAM. 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.
Key Specifications
| Attribute | Value |
|---|---|
| Core | ARM® 32-bit Cortex®-M3 CPU |
| Maximum Clock Frequency | 72 MHz |
| Program Memory Size | 512 kB |
| Data Bus Width | 32 bit |
| ADC Resolution | 12 bit |
| Number of ADCs | 3 (up to 21 channels) |
| Number of DACs | 2 (12-bit) |
| Timers | Up to 11 timers (including 4 general-purpose 16-bit timers and 2 motor control PWM timers) |
| Communication Interfaces | Up to 5 USARTs, 3 SPIs, 2 I2Cs, 2 I2Ss, 1 CAN (2.0B Active), 1 USB 2.0 full speed, 1 SDIO |
| Operating Temperature | –40 to +105 °C |
| Power Supply | 2.0 to 3.6 V |
| I/Os | Up to 112 fast I/O ports |
Key Features
- High-performance ARM® 32-bit Cortex®-M3 CPU with a maximum frequency of 72 MHz.
- High-speed embedded memories: up to 512 Kbytes of Flash memory and up to 64 Kbytes of SRAM.
- Three 12-bit ADCs with up to 21 channels, and two 12-bit DACs.
- Extensive range of peripherals including timers, ADCs, DACs, SDIO, I2Ss, SPIs, I2Cs, and USARTs.
- Low-power modes: Sleep, Stop, and Standby.
- VBAT supply for RTC and backup registers.
- Serial wire debug (SWD) and JTAG interfaces, along with Cortex®-M3 Embedded Trace Macrocell™.
- CRC calculation unit and 96-bit unique ID.
- ECOPACK® packages.
Applications
The STM32F103RET7 is suitable for a wide range of applications, including:
- Motor drives and advanced motor control.
- Application control and industrial applications.
- Medical and handheld equipment.
- PC and gaming peripherals.
- GPS platforms.
- PLCs, inverters, printers, scanners, and alarm systems.
- Video intercom and HVAC systems.
Q & A
- What is the core of the STM32F103RET7 microcontroller?
The core is the ARM® 32-bit Cortex®-M3 CPU. - What is the maximum clock frequency of the STM32F103RET7?
The maximum clock frequency is 72 MHz. - How much Flash memory does the STM32F103RET7 have?
The STM32F103RET7 has up to 512 Kbytes of Flash memory. - What is the temperature range for the STM32F103RET7?
The operating temperature range is –40 to +105 °C. - What communication interfaces are available on the STM32F103RET7?
The device includes up to 5 USARTs, 3 SPIs, 2 I2Cs, 2 I2Ss, 1 CAN (2.0B Active), 1 USB 2.0 full speed, and 1 SDIO interface. - Does the STM32F103RET7 support low-power modes?
Yes, it supports Sleep, Stop, and Standby modes. - What debug interfaces are available on the STM32F103RET7?
The device supports serial wire debug (SWD) and JTAG interfaces, along with Cortex®-M3 Embedded Trace Macrocell™. - What types of timers are available on the STM32F103RET7?
The device includes up to 11 timers, including 4 general-purpose 16-bit timers and 2 motor control PWM timers. - How many I/O ports does the STM32F103RET7 have?
The device has up to 112 fast I/O ports. - What is the power supply range for the STM32F103RET7?
The power supply range is 2.0 to 3.6 V.
