The RV5C338A is a real-time clock (RTC) IC manufactured by Ricoh. It's designed to provide accurate timekeeping in a variety of electronic devices, even when the main power is off. This is achieved through the use of a backup battery.

Applications

• Embedded systems
• Industrial control equipment
• Consumer electronics (e.g., set-top boxes, DVD players)
• Point-of-sale (POS) terminals
• Data loggers

Features

• Integrated Real-Time Clock (RTC)
• Built-in crystal oscillator
• I2C interface for communication
• Automatic leap year compensation
• Alarm function
• Backup battery switchover

Benefits

• Provides accurate timekeeping even when the main power is off
• Simplifies system design with integrated crystal oscillator
• Easy integration into various systems via I2C interface
• Reduces the need for external components
• Increases system reliability with automatic battery backup

Technical Specifications

The RV5C338A operates on a supply voltage typically between 1.8V and 5.5V. It uses a standard I2C interface for communication with a host microcontroller. The device includes registers for storing the year, month, day, hour, minute, and second. It automatically adjusts for leap years. The battery backup functionality ensures continuous operation during power outages. The operating temperature range typically spans from -40°C to +85°C. Its low power consumption makes it suitable for battery-powered applications.

The RV5C338A is essential for applications requiring precise time tracking and data logging, offering a reliable solution for preserving time-related information.