The device will find excellent use in household appliance products such as coffee makers, electric kettles, electric stoves, rice cookers, soybean milk machines, etc. The device is also suitable for use in low profile products, such as smart wearable devices, lithium battery protection boards, etc.

With regard to its other functions, the device has a Flash Program Memory capacity of 4K×16, a Data Memory capacity of 256×8 and an EEPROM capacity of 128×8. As for peripheral functions, the device contains multifunctional Timer Modules, a 12-bit A/D converter, comparators, SPI, I2C and UART interfaces.

The internal oscillator can select operating frequencies of 8, 12 or 16 MHz with an accuracy of up to ±1%. The A/D converter reference voltage is 1.2V with an accuracy of up to ±1% . As for packaging the device is supplied in 20-pin SOP, 24/28-pin SOP and SSOP and 24/28-pin QFN package types. The device is pin compatible with the HT66F0185 and HT66F3195 with the same package types.