STM32F103 Cortex, Flash 256KB, RAM 48KB, ADC 12Bit x 16, Timer 16Bit x 8, 24Bit down Counter, SPI x 3, I2C x 2,I2S x 2, UART x 7, SDIO,USB,CAN, RTC, WDG x 2, LQFP64 Package

| Attribute | Attribute Value | 
|---|---|
| Datasheet | Datasheet | 
| 3D Model | 3D Model | 
| Mounting Style | Surface Mount | 
| Number of Pins | 64 Pin | 
| Case/Package | LQFP-64 | 
| Frequency | 72 MHz | 
| Supply Voltage (DC) | 2.00V (min) | 
| Operating Voltage | 2V ~ 3.6V | 
| Number of Positions | 64 Position | 
| Clock Speed | 72.0 MHz | 
| RAM Memory Size | 48 KB | 
| Number of Bits | 32 Bit | 
| FLASH Memory Size | 256 KB | 
| Number of ADCs | 3 ADC | 
| Number of Inputs and Outputs | 51 Input IO | 
| Operating Temperature (Max) | 85 ℃ | 
| Operating Temperature (Min) | -40 ℃ | 
| Power Dissipation (Max) | 444 mW | 
| Number of DACs | 2 DAC | 
| Supply Voltage | 2V ~ 3.6V | 
| Supply Voltage (Max) | 3.6 V | 
| Supply Voltage (Min) | 2 V | 
| Show | |
| Size-Length | 10.2 mm | 
| Size-Width | 10.2 mm | 
| Size-Height | 1.45 mm | 
| Operating Temperature | -40℃ ~ 85℃ (TA) | 
| Product Lifecycle Status | Active | 
| Packaging | Tray | 
| RoHS | RoHS Compliant | 
| Lead-Free Status | Lead Free | 
| REACH SVHC Compliance | No SVHC | 
| REACH SVHC Compliance Edition | 2014/06/16 | 
| ECCN Code | 3A991A2 | 
| HK STC License | NLR |