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The STM32F091xB/xC microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 256 Kbytes of Flash memory and 32 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. The device offers standard communication interfaces (two I2Cs, two SPIs/one I2S, one HDMI CEC and up to eight USARTs), one CAN, one 12-bit ADC, one 12-bit DAC with two channels, seven 16-bit timers, one 32-bit timer and an advanced-control PWM timer.
The STM32F091xB/xC microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.
The STM32F091xB/xC microcontrollers include devices in seven different packages ranging from 48 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included.
This blog will introduce STM32F091RCT6 systematically from its features, pinout to its specifications, applications, also including STM32F091RCT6 datasheet and so much more.
The following figure is the diagram of STM32F091RCT6 pinout.
STM32F091RCT6 Pinout
STM32F091xB/xC microcontrollers are suitable for a wide range of applications such as application control and user interfaces, hand-held equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms and HVACs.
The followings are STM32F091RCT6 Symbol, Footprint, and 3D Model.
STM32F091RCT6 Symbol
STM32F091RCT6 Footprint
STM32F091RCT6 3D Model
The following shows the typical application with an 8 MHz crystal .
STM32F091RCT6 Circuit Diagram
The following figure shows the block diagram of STM32F091RCT6.
STM32F091RCT6 Block Diagram
The following is power supply scheme. Each power supply pair (VDD/VSS, VDDA/VSSA etc.) must be decoupled with filtering ceramic capacitors as shown above. These capacitors must be placed as close as possible to, or below, the appropriate pins on the underside of the PCB to ensure the good functionality of the device.
STM32F091RCT6 Power Supply Scheme
| Attribute | Value |
| Family Name | STM32 |
| Package Type | LQFP |
| Mounting Type | Surface Mount |
| Pin Count | 64 |
| Device Core | ARM Cortex M0 |
| Data Bus Width | 32bit |
| Program Memory Size | 256 kB |
| Maximum Frequency | 48MHz |
| RAM Size | 32 kB |
| Number of SPI Channels | 2 |
| Typical Operating Supply Voltage | 2 → 3.6 V |
| Number of Timers | 2 |
| Number of I2C Channels | 2 |
| Timer Resolution | 16 bit, 32bit |
| ADCs | 19 x 12 bit |
| Length | 10mm |
| Maximum Operating Temperature | +85 °C |
| Height | 1.45mm |
| Number of ADC Units | 1 |
| Number of CAN Channels | 1 |
| Instruction Set Architecture | RISC |
| Dimensions | 10 x 10 x 1.45mm |
| Minimum Operating Temperature | -40 °C |
| Number of USART Channels | 8 |
| Width | 10mm |
| Program Memory Type | Flash |
STMicroelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio, and strategic partners positions, STMicroelectronics is at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends.
You can download STM32F091RCT6 datasheet and reference manual from the link given below:
STM32F091RCT6 Reference Manual
Note: Please check their parameters and pin configuration before replacing them in your circuit.
The STM32F091xB/xC microcontrollers incorporate the high-performance ARM ® Cortex ® -M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 256 Kbytes of Flash memory and 32 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os.
The STM32F103xC/D/E high-density performance line family operates in the –40 to +105 °C temperature range, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.
In the office, microcontrollers are used in computer keyboards, monitors, printers, copiers, fax machines, and telephone systems to name a few. In your home, microcontrollers are used in microwave ovens, washers and dryers, security systems, lawn sprinkler station controllers, and music/video entertainment components.
Microprocessors are made from silicon, quartz, metals, and other chemicals. From start to finish, it takes about 2 months to make a microprocessor. Microprocessors are classified by the size of their data bus or address bus. They are also grouped into CISC and RISC types.
Microcontrollers are embedded inside devices to control the actions and features of a product. Hence, they can also be referred to as embedded controllers. Microcontrollers can take inputs from the device they controlling and retain control by sending the device signals to different parts of the device.
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