Part Number: STM32F101R8T6

Manufacturer: STMicroelectronics

Description: IC MCU 32BIT 64KB FLASH 64LQFP

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Technical Specifications of STM32F101R8T6

Datasheet  STM32F101R8T6 datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer STMicroelectronics
Series STM32 F1
Packaging Tray
Part Status Active
Core Processor ARM? Cortex?-M3
Core Size 32-Bit
Speed 36MHz
Connectivity I2C, IrDA, LIN, SPI, UART/USART
Peripherals DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
Number of I/O 51
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
RAM Size 10K x 8
Voltage – Supply (Vcc/Vdd) 2 V ~ 3.6 V
Data Converters A/D 16x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 64-LQFP
Supplier Device Package 64-LQFP (10×10)


The STM32F101xx medium-density access line family is a significant series of microcontrollers on the market. These microcontrollers are equipped with the advanced ARM Cortex-M3 core, which operates at 36 MHz and provides exceptional processing capabilities. The devices boast high-speed embedded memories that offer up to 128 KB of flash memory and 16 KB of SRAM. This provides sufficient storage for various applications.

These microcontrollers provide seamless connectivity with their extensive range of peripherals and communication interfaces, such as I2C, SPI, and USARTs. These devices are capable of operating within a broad temperature range, spanning from -40 to +85 °C, and can be powered using a supply of 2.0 to 3.6 V. The STM32F101xx family offers enhanced flexibility through a variety of package options, ranging from 36 to 100 pins. These microcontrollers are versatile and suitable for a wide range of applications, including industrial automation, consumer electronics, healthcare devices, and others.

STM32F101R8T6 Overview

The microcontroller known as STM32F101R8T6 belongs to the medium-density access line family of STM32F101xx. The device is equipped with an ARM Cortex-M3 core operating at 36 MHz to ensure efficient processing. The device offers sufficient storage capacity with its 64 kilobytes of flash memory and 8 kilobytes of SRAM. The microcontroller provides multiple communication interfaces, such as I2C, SPI, and USART. The device functions dependably within a temperature range of -40 to +85 °C and can be powered using a supply of 2.0 to 3.6 V. The microcontroller known as STM32F101R8T6 is highly versatile and can be used in a variety of applications.

Peripherals and Features

The STM32F101R8T6 microcontroller has a variety of devices and features that make it more useful and allow it to be used in many different ways. Let’s study these in detail:

● Interfaces for Standard Communication

The STM32F101R8T6 has standard interfaces for transmission, such as I2C, SPI, and USARTs. These interfaces make it easy for devices and peripherals to communicate with each other. Inter-Integrated Circuit, or I2C, is a popular way for microcontrollers and sensors or other digital devices to talk to each other. SPI (Serial Peripheral Interface) lets devices like screens, memory chips, and sensors talk to each other quickly. USARTs, or Universal Synchronous/Asynchronous Receiver Transmitters, let devices like PCs or wireless units talk to each other in serial.

● 12-bit ADC (Analog-to-Digital Converter)

The STM32F101R8T6 has a 12-bit ADC, which means that analog-to-digital conversion can be done in an exact and accurate way. This feature is useful for apps like sensor interfacing, data acquisition, and control systems that need analog measurements. The 12-bit resolution makes sure that converting analog data to digital values is done with high accuracy.

● clocks with 16 bits that can be used for anything

The STM32F101R8T6 has three 16-bit clocks that can be used for anything. These timers give you precise control over timing and can be used for many things, like making PWM (pulse width modulation) signals for motor control, keeping track of time, counting events, and making sure tasks happen at the same time. Because they are flexible and can be programmed, they are important for time-sensitive operations.

● Extra Accessories and Features

The STM32F101R8T6 microcontroller has a number of interesting peripherals and features in addition to the usual communication interfaces, ADC, and timers. These may include GPIO (general-purpose input/output) pins for digital I/O operations, an external interrupt controller for handling external events, a watchdog timer for system tracking and recovery, and different serial interfaces like I2S (inter-IC sound) for transferring audio data. These extra peripherals give the microcontroller more freedom and allow it to be used for a wider range of tasks.

The STM32F101R8T6 microcontroller has standard communication interfaces, a 12-bit ADC, and general-purpose 16-bit timers. This lets it connect to other devices easily, take exact analog measurements, and control timing accurately. Together with other peripherals, these features give developers a full set of tools for making a wide range of applications in fields like industrial robotics, consumer electronics, and more.

STM32F101R8T6 Application Areas

The STM32F101R8T6 microprocessor can be used in a lot of different ways because it is flexible and has powerful features. It can be used for application control and user interfaces, like home automation systems and industrial control screens.

  • Medical and portable tools, like wearable health monitors and portable medical gadgets.
  • Keyboards, mice, and game controls are examples of PC add-ons.
  • Game logic, graphics, and navigation apps can be built on gaming and GPS systems.
  • For example, PLCs, generators, printers, scanners, and alarm systems are all used in industrial settings.
  • Video intercoms and HVACs are used for both voice and video communication and to control the temperature.

The STM32F101R8T6 microcontroller gives developers the freedom to make new solutions for fields like automation, healthcare, gaming, industrial control, and more.

Power-Saving Modes

The STM32F101xx microcontrollers have a wide range of power-saving modes that make it possible to create low-power apps. These modes are made to use less power when you’re not doing anything or when you’re not using certain tools. By controlling how much power is used, these modes help the battery last longer and use less energy.

The power-saving modes available in the STM32F101xx family include

  • Sleep Mode: The core stops working in this mode, but the SRAM and registers stay on. This lets the computer wake up quickly and is good for applications that need a quick reaction.
  • Stop Mode: The CPU, Flash memory, and other clocks stop, but the information in the SRAM stays the same. Only the low-power control stays on, which greatly cuts the amount of power used. This mode is best for apps that can wait longer to wake up and need to use less power when they’re not doing anything.
  • Standby Mode: This mode uses the least amount of power because most of the internal parts and connections are turned off. Only the backup domain and remote interrupts are still working. It works well for apps that need the longest battery life and can wait longer to wake up.

By making good use of these power-saving modes, developers can make low-power applications for a wide range of businesses and uses. Power efficiency is especially important for battery-powered devices, portable systems, and apps that care about energy use, such as wearable devices, remote sensors, Internet of Things (IoT) devices, and medical devices. The ability to optimize power usage makes batteries last longer, cuts costs, and helps the environment. In today’s energy-conscious world, the power-saving modes of the STM32F101xx microcontrollers give us the tools we need to reach these goals and meet the needs of power-sensitive apps.


The STM32F101R8T6 microcontroller, part of the STM32F101xx medium-density access line family, is a versatile and powerful solution for embedded systems and electronics projects. Its 36 MHz ARM Cortex-M3 core, ample memory, and standard communication interfaces provide the necessary capabilities for seamless connectivity and efficient processing. It finds applications in control systems, medical devices, PC peripherals, gaming platforms, and industrial applications, empowering developers to create innovative solutions in automation, healthcare, gaming, and industrial control.

At ICRFQ, we are dedicated to helping you maximize the potential of the STM32F101R8T6. Contact us today to collaborate on building safe and reliable solutions for your critical systems, harnessing the strength and adaptability of the STM32F101R8T6 microcontroller.

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