Linear Technology LTC1235CN Microprocessor Supervisory Circuit

The LTC1235CN, designed and manufactured by Linear Technology, is a robust microprocessor supervisory circuit that provides a multitude of features to enhance the reliability and proper functioning of microprocessor systems. This integrated circuit is engineered to monitor power supplies and microprocessor activity, ensuring that systems operate within safe parameters.

Key Features:

• Power Monitoring: The LTC1235CN offers precision monitoring of the +5V power supply, which is crucial for systems that demand a stable and reliable power source.
• Microprocessor Reset: It includes an automatic reset generation during power-up, power-down, and brownout conditions, thereby ensuring the microprocessor restarts in a known state.
• Watchdog Timer: A built-in watchdog timer guarantees that the microprocessor does not hang in an uncontrolled state, by forcing a system reset if the microprocessor fails to provide periodic signals within a predefined time frame.
• Backup Battery Switchover: In the event of a power failure, the LTC1235CN seamlessly switches to a backup battery, maintaining the volatile memory and real-time clock operations.
• Debounced Manual Reset: An additional feature is the manual reset input that is debounced, allowing for a clean and intentional reset signal.

Applications:

The LTC1235CN is an ideal choice for a wide range of applications that require vigilant monitoring of system health and integrity. Its applications include:

• Computers and Servers
• Embedded Systems
• Industrial Control Systems
• Portable Battery-Powered Equipment
• Communication Systems

Technical Specifications:

The LTC1235CN operates within a temperature range of 0°C to 70°C and comes in an 18-pin PDIP (Plastic Dual In-line Package). It requires a minimal number of external components, simplifying design and reducing overall system cost. The device is also characterized by its low power consumption, making it suitable for power-sensitive applications.

With its comprehensive suite of features, the LTC1235CN from Linear Technology is an indispensable component for system designers looking to enhance the operational stability and reliability of their microprocessor-based systems.