The AM1815AQ is a Real-Time Clock (RTC) from Ambiq Micro, Inc., designed for ultra-low power applications. It combines accurate timekeeping with minimal energy consumption, making it ideal for battery-powered devices and systems where long battery life is crucial. The AM1815AQ provides accurate time and calendar information, along with advanced features such as alarms and timers.

Applications

• Wearable devices: Smartwatches, fitness trackers, and other wearables requiring accurate timekeeping with minimal battery drain.
• IoT (Internet of Things) devices: Sensors, data loggers, and other IoT devices that need to maintain accurate time for data synchronization and event scheduling.
• Portable medical devices: Glucose meters, heart rate monitors, and other medical devices requiring reliable timekeeping for data logging and analysis.
• Smart meters: Utility meters that need to record time-stamped data for billing and consumption tracking.
• Industrial automation: Control systems, data acquisition systems, and other industrial equipment requiring accurate time synchronization.

Features

• Ultra-low power consumption: Minimizes energy usage, extending battery life in portable devices.
• Accurate timekeeping: Provides precise time and calendar information with minimal drift.
• Integrated crystal oscillator: Eliminates the need for external crystal, simplifying design and reducing board space.
• I2C interface: Uses the I2C protocol for simple and efficient communication with microcontrollers.
• Alarm and timer functions: Allows for scheduling events and triggering actions based on time.
• Battery backup: Supports battery backup to maintain timekeeping even when main power is lost.
• Small package size: Available in compact packages, such as QFN, for space-constrained applications.

Benefits

• Extended battery life: Reduces energy consumption, allowing for longer operation in battery-powered devices.
• Precise time synchronization: Ensures accurate timekeeping across multiple devices and systems.
• Simplified design: Reduces component count and board space, simplifying system design.
• Flexible scheduling: Enables scheduling of events and actions based on time.
• Reliable timekeeping: Maintains accurate time even during power outages.

Additional Details

The AM1815AQ uses Ambiq Micro's Subthreshold Power Optimized Technology (SPOT) platform to achieve its ultra-low power consumption. It includes a built-in temperature sensor for temperature compensation, ensuring accurate timekeeping over a wide temperature range. The device stores time and calendar information in binary coded decimal (BCD) format. It also features a programmable output for generating periodic signals or alarm events. The datasheet provides detailed information on register settings, power management, and communication protocols.