ISL12025IVZ

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Clock/Timing - Real Time Clocks are a crucial component in the realm of embedded electronics. Applications such as industrial controllers, power supply controllers, home appliances, and communication equipment rely on accurate clock pulses for coordinated system operation. The ISL12025IVZ is a high performance Real-Time Clock (RTC) device that contains an integrated oscillator, battery backed SRAM, a six-digit Binary Coded Decimal (BCD) counted with up to 64 interrupts, providing ideal time keeping and synchronization for networks requiring precise time and data parameters.

The ISL12025IVZ integrates a series of features that make it an ideal solution for applications requiring high accuracy timekeeping and precise time management. The device can automatically detect the presence of an external 32.768 kHz oscillator and make use of it, negating the need for an external circuit for timing. It supports multiple voltage levels (1.2V-3.3V) for compatibility with a range of applications and environmental conditions.

The main features of the ISL12025IVZ are as follows:

• Battery Backup: The internal SRAM maintains up to 256 bytes of data even during power failure events.
• Real Time Clock (RTC): Integrated RTC with a high accuracy oscillator to track and maintain system time.
• Interrupts: Up to 64 different interrupts can be set up to trigger on specific times.
• Temperature Sensor: Built-in temperature sensor with resolution of 0.125°C accuracy.
• Data Retention: Data is retained across system power cycles.

The ISL12025IVZ makes use of a 32.768 kHz external oscillator to provide accuracy and reliability in timekeeping. This oscillator is converted to a 1 Hz pulse and sent to the main control logic to mark the passage of time. The device features an integrated programmable timer and various interrupt sources that allow it to detect and respond to real-time events, such as DST or events related to a particular date or time. The ISL12025IVZ also features an integrated temperature sensor and alarm system that can be used to automate tasks or provide additional security for critical applications.

The ISL12025IVZ operates in three operational modes; Normal Mode, Standby Mode and Sleep Mode. The normal mode allows applications to keep the device running 24/7, while the stand-by mode minimizes power consumption while still keeping the time updated. In sleep mode, the device shuts down completely and requires no power to retain time, making it an ideal solution for battery powered applications. The device can be programmed to enter any one of these modes through the integrated I2C bus, allowing it to be easily integrated and managed.

The ISL12025IVZ is the ideal solution for applications requiring high accuracy, stability and synchronization. Its compatibility with multiple voltage levels and wide temperature range make it suitable for use in industrial, medical and consumer applications. With its integrated timer, interrupts and temperature sensor, the ISL12025IVZ is a powerful yet cost-effective alternative to traditional timekeeping solutions.

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