STM32F105 in STM32 Family
The STM32F105 Connectivity Line, manufactured by STMicroelectronics, is a sub-family of the STM32F1 series based on the ARM Cortex-M3 core. These 32-bit microcontrollers are specifically engineered for applications requiring high-speed communication and robust connectivity. By integrating a USB 2.0 OTG hardware interface and dual CAN 2.0B controllers, the F105 provides a cost-effective bridge between industrial fieldbus protocols and modern consumer peripherals while maintaining the power efficiency of the 72MHz Cortex-M3 architecture.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Flash | Stock |
|---|---|---|
| STM32F105RCT6 (STMicroelectronics) | 256KB | 23,057 |
| STM32F105RBT6 (STMicroelectronics) | 128KB | 2,076 |
The STM32F105 variants are primarily distinguished by their Flash memory density, ranging from 64 KB to 256 KB, and package pin counts, such as LQFP64 or LQFP100. Higher-density models like the RCT6 offer 256 KB of Flash, whereas the RBT6 provides 128 KB. Some variants include 'TR' suffixes indicating tape-and-reel packaging for automated assembly, while others may feature extended temperature ranges for industrial environments.
