Overview
The STM32F091CBT6TR is a 32-bit microcontroller from STMicroelectronics, part of the STM32F091xB/xC family. It is based on the ARM® Cortex®-M0 CPU and is designed for a wide range of applications requiring high performance, low power consumption, and advanced peripherals.
This microcontroller is particularly suited for industrial control, medical devices, consumer electronics, and other embedded systems that require robust and efficient processing capabilities.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® 32-bit Cortex®-M0 CPU, up to 48 MHz |
| Memories | 128 to 256 Kbytes of Flash memory, 32 Kbytes of SRAM with HW parity |
| Supply Voltage | 2.0 V to 3.6 V (digital and I/Os), 2.4 V to 3.6 V (analog) |
| Operating Temperature | -40°C to 85°C |
| Package | LQFP48 7x7 mm |
| Clock Management | 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 8 MHz RC with x6 PLL option, internal 40 kHz RC oscillator, internal 48 MHz oscillator |
| I/Os | Up to 88 fast I/Os, up to 69 I/Os with 5V-tolerant capability and 19 with independent supply VDDIO2 |
| ADC | One 12-bit, 1.0 µs ADC (up to 16 channels) |
| DAC | One 12-bit D/A converter (with 2 channels) |
| Timers | 12 timers including one 16-bit advanced-control timer, one 32-bit and seven 16-bit timers |
| Communication Interfaces | Two I2C interfaces, up to eight USARTs, two SPIs, CAN interface |
Key Features
- Advanced Peripherals: Includes 12-bit ADC, 12-bit DAC, two fast low-power analog comparators, and up to 24 capacitive sensing channels.
- Communication Interfaces: Supports I2C, USART, SPI, and CAN interfaces, along with HDMI CEC wakeup and serial wire debug (SWD).
- Power Management: Features low power modes (Sleep, Stop, Standby), power-on/power-down reset (POR/PDR), programmable voltage detector (PVD), and VBAT supply for RTC and backup registers.
- Real-Time Clock (RTC): Calendar RTC with alarm and periodic wakeup from Stop/Standby.
- Security and Identification: Includes a 96-bit unique ID and system window watchdog (WWDG).
Applications
- Industrial Control: Suitable for industrial automation, motor control, and sensor applications.
- Medical Devices: Can be used in medical devices requiring precise control and low power consumption.
- Consumer Electronics: Ideal for consumer electronics such as home appliances, gaming devices, and wearables.
- Automotive Systems: Applicable in automotive systems for control and monitoring functions.
- IoT Devices: Suitable for Internet of Things (IoT) devices that require efficient processing and low power consumption.
Q & A
- What is the core of the STM32F091CBT6TR microcontroller?
The core is the ARM® 32-bit Cortex®-M0 CPU, which operates up to 48 MHz.
- How much Flash and SRAM memory does the STM32F091CBT6TR have?
It has 128 to 256 Kbytes of Flash memory and 32 Kbytes of SRAM with HW parity.
- What is the operating voltage range of the STM32F091CBT6TR?
The operating voltage range is 2.0 V to 3.6 V for digital and I/Os, and 2.4 V to 3.6 V for analog supply.
- What types of communication interfaces does the STM32F091CBT6TR support?
It supports I2C, USART, SPI, and CAN interfaces.
- Does the STM32F091CBT6TR have any power-saving features?
Yes, it features low power modes (Sleep, Stop, Standby) and other power management options like POR/PDR and PVD.
- What is the purpose of the 96-bit unique ID in the STM32F091CBT6TR?
The 96-bit unique ID is used for device identification and security purposes.
- Can the STM32F091CBT6TR be used in industrial control applications?
Yes, it is suitable for industrial control due to its robust peripherals and low power consumption.
- What is the maximum temperature range for the STM32F091CBT6TR?
The operating temperature range is -40°C to 85°C.
- Does the STM32F091CBT6TR support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the purpose of the RTC in the STM32F091CBT6TR?
The Real-Time Clock (RTC) provides calendar functionality with alarm and periodic wakeup from Stop/Standby modes.
