The HT8563ARZ is a Real-Time Clock (RTC) designed and manufactured by HTCSEMI. It is an 8-pin, small outline package (SOP-8) device that complies with the Restriction of Hazardous Substances (RoHS) directive. This RTC provides long-term precision (±1 minute/month at 25°C temperature) and can track the time and date and operate continuously while powered with a backup battery system. It is equipped with an internal 32KHz oscillator, a temperature-compensated crystal oscillator, and supports a wide range of operating temperatures (-40°C to +85°C). The HT8563ARZ provides features such as error counting, offset correction, and drift compensation, which are useful for achieving greater accuracy. It is suitable for applications that require precise time and date measurements, such as industrial and automotive systems.