The HT66F0182 is an integrated circuit with 8 KB of Flash program memory, 768 bytes of SRAM, and 16 I/O lines, housed in a 16-pin NSOP-16 package. It is manufactured by Holtek and is compliant with the RoHS standard. This IC is a low-power microcontroller based on the 8-bit H8/300H core. The built-in I/O peripherals include a serial interface, an 8-bit base timer, two watchdogs, an 8-bit PWM timer, three GPIO ports, an ADC unit, and an RTC unit. It runs at a high performance clock frequency of up to 20 MHz. This product is suitable for digital home appliances, home security, data monitoring, remote control, and other consumer applications.