The HT1380A is an integrated circuit produced by Holtek that features an 8-pin Dual In-Line Package (DIP) that is specifically designed for timing applications. It operates on a 3.3V power supply and has a wide range of features, including an alarm output, countdown timer, clock supply sensitivity, watchdog timer, and self-adjusting clock output. It also has an integrated 32.768KHz crystal oscillator, which can be used as a reference oscillator for other clock sources. The device also comes with built-in protection to ensure against overcurrent, overvoltage, and short circuit. It's RoHS compliant and meets the most stringent environmental protection standards. The HT1380A is an ideal solution for applications that require an accurate and reliable timing source.