The DS1302 is a real-time clock (RTC) integrated circuit produced by Maxim Integrated. It is commonly used in electronic devices and embedded systems to keep track of time and date. Here are the key features and specifications of the DS1302:
Real-Time Clock (RTC): The DS1302 is primarily designed as a real-time clock IC, capable of accurately keeping track of time and date.
Low Power Consumption: The DS1302 operates with low power consumption, making it suitable for battery-powered applications where power efficiency is critical.
Clock Accuracy: The DS1302 offers good clock accuracy, typically within a few seconds per month, ensuring reliable timekeeping over extended periods.
Built-in Battery Backup: The DS1302 includes built-in battery backup support, allowing it to continue keeping time even when the main power source is disconnected. This feature ensures data retention during power outages or when the device is powered off.
Serial Interface: The DS1302 communicates with microcontrollers or other devices via a simple serial interface, typically using a three-wire interface (data, clock, and chip select).
Wide Operating Voltage Range: The DS1302 can operate over a wide voltage range, typically from 2.0 volts to 5.5 volts, providing flexibility in various power supply configurations.
Integrated Crystal Oscillator: The DS1302 includes an integrated crystal oscillator circuit, simplifying the design and reducing external component count. It typically uses a 32.768 kHz crystal for accurate timekeeping.
Registers for Time and Date Storage: The DS1302 features registers for storing time (hours, minutes, seconds) and date (day, month, year), allowing easy access to the current time and date information.
Trickle Charger Circuitry: The DS1302 includes trickle charger circuitry for the backup battery, ensuring the backup battery remains charged for reliable operation.
Application: The DS1302 is widely used in various electronic devices and systems requiring accurate timekeeping, such as clocks, watches, data loggers, temperature controllers, and other time-sensitive applications.
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