Peripherals and connectivity — what is on-chip
The STM32F091CBT7TR: Connectivity covers CANbus, I²C, IrDA, LINbus, SPI, and UART/USART. The data converters provide 13-channel 12-bit ADC and 2-channel 12-bit DAC.

STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-bit MCU, 48MHz, 128KB Flash, 32K x 8 RAM, CANbus, I²C, IrDA, LINbus, SPI, UART/USART, 38 I/O, 2V ~ 3.6V, -40°C ~ 105°C, 48-LQFP.
| Parameter | Value |
|---|---|
| Series | STM32F0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 48MHz |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 13x12b; D/A 2x12b |
| Program memory size | 128KB (128K x 8) |
The STM32F091CBT7TR: Connectivity covers CANbus, I²C, IrDA, LINbus, SPI, and UART/USART. The data converters provide 13-channel 12-bit ADC and 2-channel 12-bit DAC.
The STM32F091CBT7TR and STM32F091CBT6 share the same base product number (STM32F091) and are pin-compatible in the 48-LQFP package. For designs requiring the wider temperature range, the CBT7 is the direct drop-in replacement.