The HT66F002 is an integrated circuit (IC) that has been manufactured by Holtek and is part of the company’s “HT66F” product line. The HT66F002 is an 8-pin surface-mount device (SMD) that measures just 3.9mm x 2.65mm and is compatible with standard 150-mil SOIC packages. This IC includes functions such as low-voltage operation, power-down mode, pulse-width modulation (PWM), and a three-state output. The IC also features an on-chip 8MHz RC oscillator that can be used for timing and clocking applications. The device is rated for a voltage range of between 2.2V and 5.5V and is RoHS compliant, meaning it does not contain any hazardous materials like lead, mercury or cadmium.