Description
The DS1338Z-33&R is a low-power, serial Real-Time Clock (RTC) designed to provide reliable timekeeping with minimal power requirements. Operating within a wide voltage range (1.8V to 5.5V), it is an excellent choice for a variety of battery-powered and low-voltage applications. Beyond its core timekeeping functions—which track seconds, minutes, hours, day, date, month, and year—the device integrates 56 bytes of battery-backed non-volatile (NV) RAM, perfect for storing critical system configuration data or event logs that must persist during power outages.
Communication is handled through an industry-standard I²C serial interface, simplifying integration with microcontrollers. The DS1338Z-33&R also includes an automatic leap-year compensation feature, ensuring accurate calendar tracking. Its efficient design, characterized by an ultra-low power consumption of approximately 800nA, makes it an essential, reliable component for long-duration operation in embedded systems.
Key Features
- Comprehensive Timekeeping: Tracks seconds, minutes, hours (12/24-hour format), day, date, month, and year with leap-year compensation.
- Integrated Memory: 56 bytes of battery-backed non-volatile (NV) RAM for persistent data storage.
- Ultra-Low Power: Designed for efficiency with a current draw of just 800nA, maximizing battery life.
- Flexible Interface: Standard I²C serial interface for straightforward digital communication.
- Wide Voltage Support: Operates reliably from 1.8V to 5.5V.
- Compact Packaging: Housed in an SMD-8 package, ideal for space-sensitive PCB layouts.
Application
- Embedded Systems: Provides a stable, persistent clock reference for microcontrollers.
- Portable Electronics: Optimized for low-power operation in battery-operated handheld devices.
- Data Logging: Uses the internal NV RAM to store time-stamped events or system states.
- Industrial Hardware: Robust and dependable timing solution for field-deployed instruments.
Package Includes
- 1 x DS1338Z-33&R RTC IC (SMD-8)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | DS1338Z-33&R |
| Interface | I²C |
| Non-Volatile Memory | 56 Bytes |
| Supply Voltage | 1.8V – 5.5V |
| Power Consumption | ~800nA |
| Package Type | SMD-8 |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 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.
