Core | Operating voltage (V) | Max frequency (MHz) | DMA | GPIO | Flash (B) | RAM (B) | ADC | LVD | LVR | Cortex M0+ | 1.8~5.5 | 32 | Y | 17 | 16k | 8k | 4x12bit | Y | Y | RCH | RCL | XTH | XTL | RTC | LPTimer | LPUART | WDT | Timer | PWM | Y | Y | Y | Y | 1 | 1 | 1 | 1 | 4 | 7 | UART | SPI | I2C | Buzzer | Anti-Copy | HRNG | CRC | Package | 2 | 2 | 1 | 1 | Y | Y | Y | QFN20 |
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