STM32F103 in STM32 Family
The STM32F103 family, produced by STMicroelectronics, is a cornerstone of the STM32 mainstream microcontroller portfolio based on the ARM Cortex-M3 core. Designed for performance and reliability, these 32-bit MCUs operate at a 72 MHz frequency and offer a balanced mix of peripherals, including USB 2.0 full-speed and CAN interfaces. It is a industry-standard choice for engineers seeking a cost-effective, high-performance general-purpose controller with extensive ecosystem support and a wide range of memory and package options.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | RAM | I/O Pins | Package | ADC/DAC | Flash | Stock |
|---|---|---|---|---|---|---|
| STM32F103VET6TR (STMicroelectronics) Tape & Reel | 64K | 80 | LQFP-100 | A/D 16x12b; D/A 2x.. | 512KB | 16,007 |
| STM32F103RBT6TR (STMicroelectronics) Tape & Reel | 20K | 51 | LQFP-64 | A/D 16x12b | 128KB | 17,074 |
| STM32F103RET6 (STMicroelectronics) | 64K | 51 | LQFP-64 | A/D 16x12b; D/A 2x.. | 512KB | 6,920 |
| STM32F103C8T6TR (STMicroelectronics) Tape & Reel | 20K | 37 | LQFP-48 | A/D 10x12b | 64KB | 4,154 |
| STM32F103R8T6 (STMicroelectronics) | 20K | 51 | LQFP-64 | A/D 16x12b | 64KB | 17,262 |
| STM32F103C8T6 (STMicroelectronics) | 20K | 37 | LQFP-48 | A/D 10x12b | 64KB | 2,612 |
| STM32F103RBT6 (STMicroelectronics) | 20K | 51 | LQFP-64 | A/D 16x12b | 128KB | 16,843 |
| STM32F103VET6 (STMicroelectronics) | 64K | 80 | LQFP-100 | A/D 16x12b; D/A 2x.. | 512KB | 28,408 |
| STM32F103RCT6 (STMicroelectronics) | 48K | 51 | LQFP-64 | A/D 16x12b; D/A 2x.. | 256KB | 26,084 |
| STM32F103ZET6 (STMicroelectronics) | 64K | 112 | LQFP-144 | A/D 21x12b; D/A 2x.. | 512KB | 3,999 |
Variants within the STM32F103 sub-family are primarily distinguished by their Flash memory density, ranging from 16KB to 1MB, and pin counts spanning from 36-pin VFQFPN to 144-pin LQFP packages. Higher-density devices, such as the 'VE' and 'ZE' suffixes, typically include additional features like an External Memory Controller (FSMC) and more complex timer configurations compared to the entry-level 'C8' or 'R8' models.
