Overview
The STM32F091CBT7 microcontroller, produced by STMicroelectronics, is part of the STM32F091xB/xC series. It features the high-performance ARM® 32-bit Cortex®-M0 CPU, operating at a frequency of up to 48 MHz. This device is equipped with high-speed embedded memories, including up to 128 Kbytes of Flash memory and 32 Kbytes of SRAM. The microcontroller offers a comprehensive set of peripherals and I/Os, making it suitable for a wide range of applications.
The device operates within a temperature range of -40 to +105 °C and is powered by a 2.0 to 3.6 V supply. It includes various power-saving modes, enabling the design of low-power applications. The STM32F091CBT7 is available in several package options, including LQFP 48 pins, and is RoHS compliant with an Ecopack2 grade.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® 32-bit Cortex®-M0 CPU |
| Frequency | Up to 48 MHz |
| Flash Memory | 128 Kbytes |
| SRAM | 32 Kbytes with HW parity |
| Power Supply | 2.0 to 3.6 V |
| Temperature Range | -40 to +105 °C |
| Package | LQFP 48 pins (7x7x1.4 mm) |
| Clock Management | 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 8 MHz RC with x6 PLL option |
| Communication Interfaces | Two I2C, two SPI, one I2S, up to eight USARTs, CAN interface |
| Analog Peripherals | One 12-bit ADC (up to 16 channels), one 12-bit DAC with two channels |
| Timers | Seven 16-bit timers, one 32-bit timer, one 16-bit advanced-control timer |
| I/Os | Up to 88 fast I/Os, up to 69 I/Os with 5V-tolerant capability |
Key Features
- High-performance ARM® 32-bit Cortex®-M0 CPU with up to 48 MHz frequency
- High-speed embedded memories: up to 128 Kbytes of Flash memory and 32 Kbytes of SRAM
- Comprehensive set of peripherals and I/Os, including two I2C, two SPI, one I2S, up to eight USARTs, and a CAN interface
- Analog peripherals: one 12-bit ADC (up to 16 channels) and one 12-bit DAC with two channels
- Multiple timers: seven 16-bit timers, one 32-bit timer, and one 16-bit advanced-control timer
- Low power modes: Sleep, Stop, Standby, and VBAT supply for RTC and backup registers
- Up to 88 fast I/Os and up to 69 I/Os with 5V-tolerant capability
- Calendar RTC with alarm and periodic wakeup from Stop/Standby
- Two fast low-power analog comparators and up to 24 capacitive sensing channels
Applications
The STM32F091CBT7 microcontroller is suitable for a wide range of applications, including:
- 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
Q & A
- What is the core processor of the STM32F091CBT7?
The core processor is the ARM® 32-bit Cortex®-M0 CPU.
- What is the maximum operating frequency of the STM32F091CBT7?
The maximum operating frequency is up to 48 MHz.
- How much Flash memory does the STM32F091CBT7 have?
The STM32F091CBT7 has 128 Kbytes of Flash memory.
- What is the temperature range for the STM32F091CBT7?
The temperature range is -40 to +105 °C.
- What types of communication interfaces are available on the STM32F091CBT7?
The device includes two I2C, two SPI, one I2S, up to eight USARTs, and a CAN interface.
- Does the STM32F091CBT7 support low power modes?
Yes, it supports Sleep, Stop, Standby, and VBAT supply for RTC and backup registers.
- How many I/Os does the STM32F091CBT7 have?
The device has up to 88 fast I/Os and up to 69 I/Os with 5V-tolerant capability.
- What analog peripherals are included in the STM32F091CBT7?
The device includes one 12-bit ADC (up to 16 channels) and one 12-bit DAC with two channels.
- What types of timers are available on the STM32F091CBT7?
The device includes seven 16-bit timers, one 32-bit timer, and one 16-bit advanced-control timer.
- Is the STM32F091CBT7 RoHS compliant?
Yes, the STM32F091CBT7 is RoHS compliant with an Ecopack2 grade.
