The RTC62423A-T is a Real-Time Clock (RTC) IC manufactured by SII Semiconductor Corporation. It is designed to provide accurate timekeeping with low power consumption, making it suitable for battery-powered applications.

Applications

• Portable devices (e.g., wearables, handhelds).
• Industrial control systems.
• Point-of-sale (POS) terminals.
• Smart meters.
• Data loggers.

Features

• I2C interface for communication.
• Built-in crystal oscillator.
• Low power consumption.
• Clock/calendar function with century byte.
• Alarm function.
• Timer function.
• Automatic backup switchover.
• 32.768 kHz crystal oscillator.

Benefits

• Accurate timekeeping in various applications.
• Simplified system design due to integrated crystal oscillator.
• Extended battery life in portable devices due to low power consumption.
• Easy integration with microcontrollers through I2C interface.
• Reliable timekeeping even during power outages with automatic backup switchover.

Technical Specifications

The RTC62423A-T communicates via the I2C bus, allowing for easy interfacing with a microcontroller or other digital system. It provides registers for storing the year, month, day, day of the week, hour, minute, and second. The century byte enables tracking of years beyond 2000. The IC includes an alarm function that can be programmed to trigger an interrupt at a specified time. The timer function can be used for general-purpose timing applications.

A key feature is the automatic backup switchover, which allows the RTC to continue operating from a backup battery when the main power supply is lost. This ensures that timekeeping is maintained even during power outages. The typical operating voltage is from 1.6V to 5.5V.

The built-in crystal oscillator uses a standard 32.768 kHz crystal to generate the time base. The IC is housed in a small package suitable for space-constrained applications.