The X84041SI is a CMOS Real-Time Clock (RTC) manufactured by Xicor Inc. It integrates a crystal oscillator, RTC core, and nonvolatile memory, making it suitable for applications requiring accurate timekeeping and data storage even when the main power is off. The device provides time and date information, including seconds, minutes, hours, day of the week, date, month, and year. The date information includes automatic leap year compensation.

Applications

• Data logging systems: Used to timestamp collected data with accurate date and time information.
• Industrial control systems: Provides time synchronization for various devices and processes.
• Point-of-sale (POS) terminals: Logs transaction times for reporting and auditing purposes.
• Embedded systems: Provides real-time clock functionality in battery-backed or low-power applications.
• Consumer electronics: Used in devices such as set-top boxes, DVD players, and other applications requiring accurate timekeeping.

Features

• Complete Real-Time Clock: Provides year, month, day, date, hour, minute, and second information.
• Integrated Crystal Oscillator: On-chip crystal oscillator minimizes external components.
• Nonvolatile Memory: Stores time and date information even when power is removed.
• Automatic Leap Year Compensation: Automatically adjusts for leap years, ensuring accurate date tracking.
• Low Power Operation: Designed for battery-backed applications, minimizing power consumption.
• I2C Interface: Communicates using the industry-standard I2C serial interface.

Benefits

• Accurate Timekeeping: Provides precise time and date information for various applications.
• Reliable Operation: Nonvolatile memory ensures data retention in the absence of power.
• Simplified Design: Integrated crystal oscillator reduces the number of external components.
• Reduced Power Consumption: Low-power operation extends battery life in portable devices.
• Easy Integration: I2C interface simplifies communication with microcontrollers and other devices.

Additional Details

The X84041SI operates with a supply voltage range of typically 3.0V to 5.5V. It is available in a variety of package options. The operating temperature range is typically -40°C to +85°C. The device's I2C interface supports standard and fast modes, allowing for flexible communication speeds. The device also features an interrupt output, which can be programmed to generate alarms or periodic interrupts. Consult the datasheet for specific voltage and timing parameters. It uses a standard 32.768 kHz crystal.