HT1380 RTC chip
The HT1380 is a low-power RTC (Real-Time Clock) IC designed for accurate timekeeping in various electronic devices. Manufactured by Holtek Semiconductor Inc., it offers a compact and efficient solution for applications requiring precise time and date information. The HT1380 integrates a real-time clock/calendar, an alarm function, and a 32.768 kHz quartz crystal oscillator. It operates with a low current consumption, making it suitable for battery-operated devices and other power-sensitive applications.
Key Features:
- Real-Time Clock: Provides accurate time and date information
- Supply Voltage: Typically operates at 2.0V to 5.5V
- Timekeeping Accuracy: ±2 ppm (at 25°C)
- Integrated 32.768 kHz Quartz Crystal Oscillator
- Alarm Function: Programmable alarm with interrupt output
- Low Power Consumption: Ideal for battery-powered devices
- Serial Interface: Simple interface for communication with microcontrollers
- Package Type: Available in various package types including SOP (Small Outline Package) and DIP (Dual In-line Package)
- Supply Voltage: 2.0V to 5.5V
- Timekeeping Current: Typically 1.2 µA at VDD = 3.0V, 25°C
- Operating Temperature Range: -40°C to +85°C
- Clock Accuracy: ±2 ppm (at 25°C)
- Alarm Output: Active-high open-drain output
- I2C Interface: Supports standard I2C communication protocol
- Clock Format: 24-hour or 12-hour format with AM/PM indicator
- Embedded Systems: Used in microcontroller-based systems for time-sensitive applications.
- Consumer Electronics: Integrated into digital clocks, timers, and electronic appliances.
- IoT Devices: Provides timekeeping capabilities in Internet of Things devices.
- Battery-Powered Devices: Ideal for devices requiring long battery life and accurate timekeeping.
- Automotive Electronics: Used in automotive applications for time and date functions.