The Intersil CDP6818AE is a real-time clock (RTC) and static CMOS RAM. This device integrates a complete real-time clock with calendar, alarm, and interrupt functions along with a 64-byte static RAM.

Applications:

• Embedded Systems: Used in embedded systems to track time and date, providing real-time information.
• Data Logging: Employed in data logging applications to timestamp recorded data.
• Industrial Control: Utilized in industrial control systems for scheduling and time-based operations.
• Consumer Electronics: Integrated into consumer electronic devices requiring timekeeping functions.
• Battery-Powered Devices: Suitable for battery-powered devices due to its low power consumption.

Features:

• Real-Time Clock: Provides accurate timekeeping with calendar functions.
• Alarm Function: Includes an alarm function that can trigger an interrupt at a specified time.
• Interrupt Output: Generates an interrupt signal for time-based events.
• 64-Byte Static RAM: Contains 64 bytes of static RAM for data storage.
• Low Power Consumption: Designed for low power operation, ideal for battery-powered applications.

Benefits:

• Accurate Timekeeping: Provides accurate time and date information for real-time applications.
• Automated Time-Based Events: Alarm and interrupt functions enable automated time-based events.
• Data Storage: Integrated RAM allows for storing data related to timekeeping or other application-specific data.
• Long Battery Life: Low power consumption extends battery life in portable devices.
• Simplified System Design: Integrates multiple functions into a single chip, reducing component count.

Additional Details:

The CDP6818AE operates on a supply voltage typically between 2.0V and 6.0V. It is packaged in a standard DIP (Dual In-line Package). The clock/calendar provides seconds, minutes, hours, day of the week, date, month, and year information. It communicates with a host processor via a simple parallel interface.