The RX-8564CF is a real-time clock (RTC) module manufactured by Epson. It's a low-power, compact device designed for accurate timekeeping in a variety of applications. The module integrates a 32.768 kHz crystal oscillator, ensuring precise time tracking. It is a popular choice where maintaining accurate time and date information is critical, even when the primary power source is unavailable.

Applications

• Embedded systems: Provides accurate timekeeping for various embedded applications.
• Handheld devices: Integrated into portable devices for time and date functions.
• Security systems: Used for time-stamping events and managing schedules.
• Industrial equipment: Accurately tracks time for process control and data logging.
• Gaming devices: Provides accurate time for in-game events and save data management.

Features

• Integrated 32.768 kHz crystal oscillator: Ensures accurate and stable timekeeping.
• I2C serial interface: Allows for easy communication with microcontrollers and other system components.
• Low power consumption: Minimizes battery drain in battery-operated applications.
• Small package size: Enables integration into space-constrained designs.
• Wide operating voltage range: Provides flexibility in system design.
• Backup battery switchover: Automatically switches to a backup battery when the main power is lost.
• Alarm function: Can be programmed to generate an interrupt at specific times or dates.
• Timer function: Offers a programmable timer for various applications.

Benefits

• Precise timekeeping: Delivers reliable and accurate time and date information.
• Simplified system design: Integrates all the necessary components for real-time clock functionality into a single module.
• Extended battery life: Low power consumption maximizes battery life in portable devices.
• Easy integration: Simple I2C interface simplifies the integration process.
• Increased system reliability: The backup battery switchover ensures continuous operation even during power failures.

Additional Details

The RX-8564CF generally operates with a supply voltage ranging from 1.5V to 5.5V. It uses the I2C serial communication protocol for data transfer. It is available in different package options, often in small surface-mount packages. The operating temperature range is typically between -40°C and +85°C. Accuracy can be affected by the crystal oscillator's frequency tolerance and temperature fluctuations, although these are generally minimized by the design. Data is stored in registers which are accessible through the I2C interface. The device includes a battery switchover circuit allowing it to maintain accurate time during power loss.