The X1228S14IZ-2.7 is an integrated Real-Time Clock (RTC) and non-volatile static RAM (SRAM) device manufactured by Renesas Electronics America. This device combines the functionality of a real-time clock, which keeps track of time and date, with non-volatile memory, which retains data even when power is removed. This combination makes it suitable for applications requiring accurate timekeeping and data logging, such as industrial controllers, point-of-sale terminals, and data acquisition systems.

Applications

• Industrial Controllers: Time-stamping events and logging data in industrial automation systems.
• Point-of-Sale Terminals: Tracking transaction times and storing sales data.
• Data Acquisition Systems: Recording time and date information along with measured data.
• Metering Devices: Logging usage data and tracking time-of-use rates.
• Medical Devices: Storing patient data and tracking treatment schedules.

Features

• Integrated RTC and SRAM: Combines real-time clock and non-volatile memory in a single package.
• Non-Volatile SRAM: Retains data even when power is removed.
• Real-Time Clock: Tracks time and date with high accuracy.
• Low Power Consumption: Minimizes battery drain for long-term operation.
• I2C Interface: Communicates with a microcontroller or other host device via the I2C serial interface.

Benefits

• Accurate Timekeeping: Provides accurate time and date information for various applications.
• Data Retention: Non-volatile memory ensures that data is preserved even during power outages.
• Simplified Design: Integrated functionality reduces component count and simplifies circuit design.
• Low Power Operation: Extends battery life in portable and battery-powered applications.
• Easy Integration: I2C interface allows for easy communication with a microcontroller.

Additional Details

The X1228S14IZ-2.7 operates with a specified supply voltage of 2.7V. Key specifications include RTC accuracy, SRAM capacity, and operating temperature range. The datasheet provides detailed information on pin assignments, I2C communication protocol, and memory organization. An external crystal is typically required for accurate timekeeping. A battery backup can be used to maintain RTC operation and SRAM data during power outages. The device is designed to be easily integrated into various embedded systems using the I2C interface.