Enhance your embedded systems and microcontroller projects with the PCF8563 Real Time Clock (RTC) Module, designed to provide accurate and reliable timekeeping even when the main controller unit (MCU) is powered off. This low-power, I2C-based RTC module features an onboard battery backup, ensuring continuous operation and time retention for up to ten years, making it an ideal choice for applications requiring precise time and calendar functions. Key Features: · Accurate Real Time Clock and Calendar Function: The PCF8563 RTC module maintains precise time and date tracking, operating independently with its onboard battery to keep time even during power outages or MCU shutdowns. · Low Power Consumption: With a typical current draw of just 0.25uA, this RTC module maximizes battery life, supported by a CR1220 3V button battery for long-term, maintenance-free operation. · I2C Communication Interface: Utilizes a standard I2C bus for easy integration and communication with various microcontrollers, supporting bus cascading to connect multiple RTC modules simultaneously. · Superior Stability and Precision: Offers enhanced accuracy and stability compared to older RTC models, ensuring dependable timekeeping for critical applications. · Multiple Output Frequencies: Provides selectable output frequencies including 32.768KHz, 1024Hz, 32Hz, and 1Hz, suitable for diverse timing and clocking needs. · Comprehensive Pin Access: Includes essential SDA and SCL interfaces along with additional INT and COT pins for extended functionality and interrupt handling. · Durable Crystal Oscillator: Equipped with a high-quality crystal oscillator to maintain stable and accurate time measurement over extended periods. · Compact and Versatile Design: Measuring approximately 4.2 x 1.7 cm, this module is compact and lightweight, perfect for integration into a variety of embedded systems and electronic projects. Specifications: · Condition: 100% Brand New · Item Type: Real Time Clock Module · Typical Current: 0.25uA · Output Frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz · Battery: CR1220 3V Button Battery (included) · Board Size: Approx. 4.2 x 1.7 cm (1.7 x 0.7 in) Package Includes: · 1 x Real Time Clock Module · 1 x Pin Header · 1 x Button Battery (CR1220 3V) This PCF8563 RTC Module is an excellent choice for developers and hobbyists seeking a reliable, low-cost, and highly accurate real-time clock solution. Its battery-backed design and stable crystal oscillator ensure uninterrupted timekeeping, making it suitable for applications such as data loggers, clocks, timers, and other embedded systems requiring precise time management.