The Maxim Integrated DS1302+ is a versatile, low-power real-time clock (RTC) with a full binary-coded decimal (BCD) clock/calendar and 31 bytes of static random access memory (SRAM). Designed to provide precise time and date information for a wide range of applications, the DS1302+ integrates a battery-backed non-volatile (NV) memory, making it an ideal solution for systems that require reliable timekeeping even in the event of a power failure.
Key Features
- Real-Time Clock/Calendar: Tracks time in hours, minutes, and seconds, and the date in terms of the month, day, and year.
- Battery-Backed Operation: Includes a backup energy source that maintains timekeeping and data retention even when the main power supply is interrupted.
- Programmable Trickle Charger: Allows the connection of a rechargeable battery to ensure the RTC remains powered.
- Simple Serial Interface: Communicates with a microcontroller via a simple, serial interface, which minimizes the pin count, benefiting compact designs.
- Low Power Consumption: Designed with a low-power crystal oscillator and automatic power-fail detection, making it suitable for battery-powered applications.
Applications
The DS1302+ is widely used in various applications that require an accurate timekeeping mechanism, such as:
- Embedded systems
- Consumer electronics
- Office electronics
- Data loggers
- Industrial controllers and IoT devices
Technical Specifications
Parameter
Value
Interface Type
Serial (2-Wire, SPI, I2C)
Date Format
YY-MM-DD-dd
Time Format
HH:MM:SS
Voltage - Supply
2 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
The DS1302+ from Maxim Integrated is a robust and reliable choice for systems requiring accurate timekeeping with minimal power consumption. Its ease of integration and comprehensive feature set make it an essential component for modern electronic designs.
