The RX-8025T/UB is a real-time clock (RTC) module manufactured by Epson. It is a variant of the RX-8025T series, offering similar functionality with potential differences in packaging or specific features. It's designed to provide accurate timekeeping for various applications, integrating a 32.768 kHz crystal oscillator for precision. The '/UB' suffix likely indicates a specific package type or feature set variation within the RX-8025T family.

Applications

• Industrial automation: Used for precise time-stamping of events and process control.
• Data loggers: Provides accurate time information for recorded data.
• Smart meters: Ensures accurate timekeeping for energy consumption measurement and billing.
• Medical devices: Integrated into medical equipment for time-critical operations and data recording.
• Network devices: Provides accurate time synchronization for network operations.

Features

• Integrated 32.768 kHz crystal oscillator: Provides accurate time base.
• I2C interface: Enables simple communication with microcontrollers.
• Low power operation: Extends battery life in portable applications.
• Compact package: Allows for integration into small form-factor devices.
• Wide operating voltage range: Provides flexibility in system design.
• Temperature compensation: Enhances accuracy across a wide temperature range.
• Backup battery support: Maintains timekeeping during power outages.
• Alarm function: Allows for programmable alarms based on time and date.
• Timer function: Provides a programmable countdown timer.

Benefits

• Precise timekeeping: Delivers reliable and accurate time information.
• Simplified design: Integrates all necessary components for real-time clock functionality.
• Energy efficiency: Minimizes power consumption for battery-powered devices.
• Easy integration: Standard I2C interface simplifies interfacing with microcontrollers.
• Increased reliability: Backup battery function ensures continuous operation.

Additional Details

The RX-8025T/UB typically operates within a voltage range of 1.8V to 5.5V. The I2C interface is used for communication and data transfer. The module is generally available in a small surface-mount package. The operating temperature range usually spans from -40°C to +85°C. The integrated temperature compensation mechanism reduces the impact of temperature variations on timekeeping accuracy. The device includes a set of registers that are accessible through the I2C interface, allowing for reading and writing time and date information, as well as configuring the alarm and timer functions. The backup battery input allows connecting a battery to keep the clock running when the main power is off.