| Core | Operating voltage (V) | Max frequency (MHz) | DMA | GPIO | Flash (B) | RAM (B) | ADC | OPA | VCOMP | Cortex M0+ | 1.8~5.5 | 32 | Y | 21 | 64k | 16k | 8x12bit | 1 | 3 | LVD | LVR | RCH | RCL | XTH | XTL | RTC | LPTimer | LPUART | WDT | Y | Y | Y | Y | Y | Y | 1 | 3 | 1 | 2 | Timer | PWM | UART | SPI | I2C | Buzzer | CAN | QSPI | Anti-Copy | HRNG | 3 | "9 (3 pairs *)" | 2 | 2 | 1 | 1 | 1 | 1 | Y | Y | CRC | Package | Y | QFN24 |
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