The RV4140AN is a low-power Real-Time Clock (RTC) IC manufactured by Fairchild/ON Semiconductor. It's designed to provide accurate timekeeping with minimal power consumption, making it ideal for battery-powered applications.

Applications

• Battery-powered devices
• Embedded systems
• Data loggers
• Time-stamping applications
• Portable instruments

Features

• Real-Time Clock (RTC): Maintains accurate time and date information.
• Low Power Consumption: Minimizes power consumption for extended battery life.
• I2C Interface: Enables easy communication with a microcontroller or other devices.
• Programmable Alarm: Allows setting an alarm to trigger an event at a specific time.
• Backup Battery Input: Provides a connection for a backup battery to maintain timekeeping during power outages.
• 32.768 kHz Crystal Oscillator: Uses a standard crystal oscillator for accurate timekeeping.

Benefits

• Accurate Timekeeping: Provides reliable time and date information.
• Extended Battery Life: Low power consumption maximizes battery life in portable devices.
• Easy Integration: I2C interface simplifies connection to microcontrollers.
• Alarm Functionality: Enables time-based events and scheduling.
• Data Protection: Backup battery ensures timekeeping during power interruptions.

Additional Details

The RV4140AN typically operates from a voltage range of 1.8V to 5.5V. The I2C address is configurable, allowing multiple RTCs to be used on the same bus. The device also includes features such as automatic leap year correction. Detailed information on register settings, power consumption characteristics, and package options can be found in the Fairchild/ON Semiconductor datasheet.