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| Core | ARM Cortex-M3 |
|---|---|
| Operating Frequency | 72 MHz |
| GPIO Pins | 42 |
| ADC | 8-channel, 10-bit |
| Communication Interfaces | UART, I2C, SPI |
| UART | 1 |
| I2C | 1 |
| SPI | 1 |
| Operating Voltage | 2.0V to 3.6V |
| Operating Temperature | -40 °C to +85 °C |
| Package | LQFP48 |
| Timers | 4 (32-bit) |
| Flash Memory | 8 KB |
| SRAM | 4 KB |