High precision ADC, 20.6bits ENOB at 250sps. It can be set to 2 differential or 4 single-ended inputs (to VSS)

8-bit RISC low power MCU, 49 instructions and 6 stack levels. The typical MCU current consumption is: 700uA at 3V and 2MHz operating clock rate, 2uA at standby and 32kHz clock rate, and 1uA at sleep 8k Bytes OTP, 256 Bytes SRAM

OTP with low programming voltage can replace external EEPROM

Internal 4MHz and 32kHz RC oscillator. No external clock source is needed

1 channel 8bits PWM0 output

Watch Dog Timer

All I/O have Schmidt trigger inputs and pull-up resistors

Flexible battery voltage detection is 2.4~3.3V

Low voltage detection and power on reset circuit

Operating voltage range: 2.4V ~ 3.6V

Operating temperature range: -40℃~ 85℃