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| PartNumber | STM32F105RBT6 | STM32F105RBT6TR | STM32F105RBT6/STM32F103 |
| Description | ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 | ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Connectivity | |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-64 | LQFP-64 | - |
| Series | STM32F105RB | STM32F105RB | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 72 MHz | 72 MHz | - |
| Program Memory Size | 128 kB | 128 kB | - |
| Data RAM Size | 64 kB | 64 kB | - |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 51 I/O | - | - |
| Operating Supply Voltage | 2 V to 3.6 V | 2 V to 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Reel | - |
| Height | 1.4 mm | - | - |
| Length | 10 mm | - | - |
| Program Memory Type | Flash | Flash | - |
| Width | 10 mm | - | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Data RAM Type | SRAM | SRAM | - |
| Interface Type | CAN, I2C, SPI, USART | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 16 | - | - |
| Number of Timers/Counters | 10 Timer | - | - |
| Processor Series | ARM Cortex M | ARM Cortex M | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 960 | 1000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 2 V | - | - |
| Tradename | STM32 | STM32 | - |
| Unit Weight | 0.012088 oz | 0.012088 oz | - |