STMicroelectronics STM32F1 series, ARM Cortex-M3, 32-Bit Single-Core, 72MHz, 128KB (128K x 8) FLASH, 64K x 8 RAM, CAN, I2C, IrDA, LIN, SPI, UART/USART, USB OTG, 51 I/O, 64-LQFP, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | STM32F1 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 72MHz |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, POR, PWM, Voltage Detect, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG |
| Number of i (O) | 51 |
| Core processor | ARM® Cortex®-M3 |
| Case | 64-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 128KB (128K x 8) |
The STM32F105RBT6TR: 128 KB Flash and 64K x 8 RAM provide space for a USB stack and CAN protocol.
Internal POR and voltage detect eliminate the need for an external supervisor in most designs.
The STM32F105RBT6TR includes two CAN 2.0B interfaces, USB OTG, two I2C, two SPI, and five UART/USART ports with IrDA and LIN support.
Yes. The STM32F105RBT6TR includes two CAN 2.0B interfaces and a USB OTG controller that can operate as host or device. This dual-interface capability is the key differentiator versus the STM32F103 series, which has only USB device and a single CAN.
The electrical and mechanical specifications are identical. The TR suffix indicates Tape & Reel packaging for automated pick-and-place, while the base part number (STM32F105RBT6) typically ships in trays or tubes. The die, firmware, and performance are the same.
The STM32F105RBT6TR shares the same ARM Cortex-M3 core, 72 MHz speed, and 64-LQFP footprint as many STM32F103 variants. However, the F105 adds USB OTG and dual CAN, which the F103 lacks. Pin compatibility is not guaranteed across all F103 package options — verify the specific F103 pinout against your PCB layout before substituting.