Overview
The STM32F100R8T7B is a microcontroller from STMicroelectronics, part of the STM32F100xx family. It incorporates the high-performance ARM® 32-bit Cortex®-M3 CPU, operating at a maximum frequency of 24 MHz and delivering 1.25 DMIPS/MHz (Dhrystone 2.1) performance. This microcontroller features high-speed embedded memories, including up to 128 Kbytes of Flash memory and up to 8 Kbytes of SRAM. It also includes an extensive range of enhanced peripherals and I/Os connected to two APB buses, making it suitable for a wide range of applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® 32-bit Cortex®-M3 CPU |
| Maximum Frequency | 24 MHz |
| Performance | 1.25 DMIPS/MHz (Dhrystone 2.1) |
| Flash Memory | 16 to 128 Kbytes |
| SRAM | 4 to 8 Kbytes |
| Power Supply | 2.0 to 3.6 V |
| Operating Temperature | –40 to +85 °C, –40 to +105 °C |
| ADC | 1 × 12-bit, 1.2 μs A/D converter (up to 16 channels) |
| DAC | 2 × 12-bit D/A converters |
| Timers | Up to 12 timers, including advanced-control PWM timer |
| Communication Interfaces | Up to two I2C, two SPI, and up to three USARTs |
| I/O Ports | Up to 80 fast I/O ports, 37/51/80 I/Os |
| Package | 48 to 100 pins |
Key Features
- Single-cycle multiplication and hardware division
- Clock, reset, and supply management: POR, PDR, programmable voltage detector (PVD), 4-to-24 MHz crystal oscillator, internal 8 MHz factory-trimmed RC, internal 40 kHz RC, PLL for CPU clock, 32 kHz oscillator for RTC with calibration
- Low power modes: Sleep, Stop, and Standby modes, VBAT supply for RTC and backup registers
- Debug mode: Serial wire debug (SWD) and JTAG interfaces
- 7-channel DMA controller supporting timers, ADC, SPIs, I2Cs, USARTs, and DACs
- Temperature sensor and up to 80 fast I/O ports, with almost all 5 V-tolerant
- Advanced motor control timers and watchdog timers (Independent and Window)
- SysTick timer: 24-bit downcounter
Applications
The STM32F100R8T7B is suitable for a wide range of applications, including:
- Application control and user interfaces
- Medical and hand-held equipment
- PC and gaming peripherals
- GPS platforms
- Industrial applications, PLCs, inverters, printers, scanners
- Alarm systems, video intercoms, and HVACs
Q & A
- What is the core of the STM32F100R8T7B microcontroller?
The core is the ARM® 32-bit Cortex®-M3 CPU.
- What is the maximum operating frequency of the STM32F100R8T7B?
The maximum operating frequency is 24 MHz.
- How much Flash memory does the STM32F100R8T7B have?
The STM32F100R8T7B has up to 128 Kbytes of Flash memory.
- What are the power supply and operating temperature ranges of the STM32F100R8T7B?
The power supply range is 2.0 to 3.6 V, and the operating temperature range is –40 to +85 °C and –40 to +105 °C.
- What types of communication interfaces are available on the STM32F100R8T7B?
The microcontroller includes up to two I2C, two SPI, and up to three USART interfaces.
- Does the STM32F100R8T7B support low power modes?
Yes, it supports Sleep, Stop, and Standby modes, along with VBAT supply for RTC and backup registers.
- What debug interfaces are available on the STM32F100R8T7B?
The microcontroller supports Serial wire debug (SWD) and JTAG interfaces.
- How many timers does the STM32F100R8T7B have?
The microcontroller includes up to 12 timers, including advanced-control PWM timers.
- What is the number of I/O ports available on the STM32F100R8T7B?
The microcontroller has up to 80 fast I/O ports, with 37/51/80 I/Os depending on the package.
- What are some typical applications of the STM32F100R8T7B?
Typical applications include application control, medical and hand-held equipment, PC and gaming peripherals, GPS platforms, industrial applications, and more.
