The ISL12020M is a low-power real-time clock (RTC) with a temperature sensor and I2C interface, manufactured by Intersil Corporation (now Renesas). It provides accurate timekeeping and temperature data for a wide range of applications. This RTC integrates all the functions needed for accurate time-of-day tracking and includes a crystal oscillator, temperature sensor, and non-volatile memory for storing time and alarm settings.

Applications

• Industrial control systems
• Data logging
• Smart meters
• Consumer electronics
• Medical devices

Features

• Real-Time Clock (RTC) with Time and Calendar
• I2C Interface
• Temperature Sensor with ±2°C Accuracy
• Automatic Backup to Battery
• Low Power Operation
• Programmable Alarm Function
• 32kHz Crystal Oscillator
• Non-Volatile Memory for Time and Alarm Storage
• Supply Voltage Range: 1.8V to 5.5V

Benefits

• Accurate Timekeeping: Ensures precise tracking of time and calendar information.
• Integrated Temperature Sensor: Provides accurate temperature readings, eliminating the need for external sensors.
• Low Power Consumption: Extends battery life in portable and battery-backed applications.
• Automatic Backup: Retains time and alarm settings during power loss, ensuring continuous operation.
• Programmable Alarm: Enables triggering of events at specific times or intervals.
• I2C Interface: Simplifies communication with microcontrollers and other system components.
• Compact Size: Allows for easy integration into space-constrained designs.

Additional Details

The ISL12020M RTC utilizes a 32kHz crystal oscillator for stable and accurate timekeeping. The I2C interface allows easy communication with a host microcontroller for reading and writing time, calendar, and alarm data. The integrated temperature sensor provides temperature readings with ±2°C accuracy, making it suitable for temperature monitoring applications. Its non-volatile memory ensures that time and alarm settings are preserved even when the main power supply is removed, and the device switches to battery backup mode automatically. The ISL12020M is an ideal choice for applications requiring precise timekeeping and temperature monitoring with low power consumption and a simple I2C interface.