Description
The DS1307ZN+T&R is a widely utilized, low-power serial Real-Time Clock (RTC) designed for precise timekeeping in a compact 8-pin SOIC package. It provides a full binary-coded decimal (BCD) clock/calendar, tracking seconds, minutes, hours, days, dates, months, and years. With built-in leap-year compensation valid through the year 2100, it is a robust timing solution for long-term deployments. The device also includes 56 bytes of battery-backed non-volatile (NV) SRAM, offering a secure, persistent memory area for critical data that must be preserved during power cycles.
Communication is handled via a bidirectional I²C bus, allowing for straightforward integration with most microcontrollers. The DS1307 features an integrated power-sense circuit that automatically detects power failures and switches to a backup supply, ensuring timekeeping remains uninterrupted even when primary power is lost. Its low power consumption—less than 500nA in battery-backup mode—makes it an ideal choice for energy-conscious embedded applications.
Key Features
- Full Calendar Functionality: Tracks seconds, minutes, hours (12/24-hour), day, date, month, and year with leap-year compensation through 2100.
- Integrated NV SRAM: 56 bytes of battery-backed general-purpose RAM with unlimited write cycles.
- Efficient Power Management: Automatic power-fail detection and switch-over circuitry; consumes under 500nA while maintaining the oscillator in backup mode.
- Programmable Output: Provides a programmable square-wave output signal for system synchronization.
- I²C Interface: Simple, bidirectional serial interface ensures easy connectivity with host controllers.
- Industrial Temperature Range: Robust performance from -40°C to +85°C.
Applications
- Embedded Systems: Essential timing reference for microcontrollers and digital logic.
- Data Logging: Uses the internal NV SRAM to store time-stamped logs and system status data.
- Consumer & Industrial Electronics: Versatile timing solution for smart appliances, utility meters, and professional instruments.
Package Includes
- 1 x DS1307ZN+T&R RTC IC (SOIC-8)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | DS1307ZN+T&R |
| Memory Configuration | 64 × 8 |
| Interface | Serial I²C |
| Supply Voltage | 4.5V – 5.5V |
| Package Type | SOIC-8 |
| Operating Temp | -40°C to +85°C |
| Shipping Weight | 0.005 kg |
| Shipping Dimensions | 6 × 6 × 1 cm |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.
