The LTC690CN8 is a versatile microprocessor supervisory circuit designed by Linear Technology to ensure the reliable operation of microprocessor systems. With its robust feature set, this device provides essential functions such as power supply monitoring, processor reset control, and backup battery switchover.

Key Features:

• Power Supply Monitoring: The LTC690CN8 monitors the power supply voltage and ensures that it remains within acceptable thresholds for stable microprocessor operation. In the event of a power failure or brownout condition, it promptly generates a reset signal to the microprocessor to prevent erroneous operation or data corruption.
• Reset Output: The reset output of the LTC690CN8 is guaranteed to be in the correct state for Vcc down to 1V, which means that the microprocessor will remain in reset mode until the supply voltage is stable enough for reliable operation.
• Backup Battery Switchover: In case of main power failure, the LTC690CN8 automatically switches to a backup battery to maintain memory and real-time clock operations, ensuring no loss of critical data.
• Low Power Consumption: This device is designed for low power consumption, drawing less than 10µA of supply current when monitoring the power supply, making it ideal for power-sensitive applications.
• Wide Operating Temperature Range: The LTC690CN8 operates over a wide temperature range, making it suitable for use in various environments and applications.

Applications:

The LTC690CN8 is ideal for use in microprocessor systems where reliable operation is critical. It is commonly used in:

• Portable devices
• Embedded systems
• Industrial controllers
• Automotive systems
• Telecommunications equipment

With its precision voltage monitoring and low power consumption, the LTC690CN8 is an excellent choice for designers looking for a reliable supervisory solution to enhance the safety and stability of their microprocessor-based systems.