Core | Operating voltage (V) | Max frequency (MHz) | GPIO | Flash (B) | RAM (B) | ADC | LVD | LVR | RCH | 8051 | 2.0~5.5 | 24 | 17 | 32K | 2K+256 | 8x12bit | Y | Y | Y | RCL | XTH | LPTimer | WDT | Timer | PWM | UART | SPI | I2C | Buzzer | Y | Y | 1 | 1 | 2 | 4 | 2 | 1 | 1 | 1 | Anti-Copy | Package | Y | TSSOP20 |
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