The DS1238A-10 is a cutting-edge MicroMonitor Chip designed and manufactured by Maxim Integrated. This chip is specifically engineered to enhance system reliability in microprocessor-based systems. It achieves this by monitoring the power supply, protecting against brownout conditions, and ensuring a proper system reset.

Key Features

• Power Supply Monitoring: The DS1238A-10 actively monitors the system's power supply voltage. If a drop below the acceptable threshold is detected, the chip ensures a safe system shutdown, thereby safeguarding the integrity of data and the microprocessor.
• Battery Backup: With an integrated battery backup circuit, the DS1238A-10 provides reliable operation even during power failures. This feature is essential for critical applications where data loss cannot be tolerated.
• Automatic Reset: Upon power-up, the chip generates a reset pulse to the microprocessor. This ensures that the system starts in a known state, preventing any erratic operation due to power supply instabilities.
• Watchdog Timer: The built-in watchdog timer serves as a fail-safe mechanism, resetting the microprocessor in the event of software lock-up or malfunction. This feature is crucial for maintaining system stability and performance.

Applications

The DS1238A-10 is an ideal component for a wide range of applications, including:

• Embedded systems
• Industrial control systems
• Telecommunication equipment
• Network servers
• Portable electronics

Technical Specifications

The DS1238A-10 operates over a wide voltage range and is available in a 10-pin surface-mount package. It has a precision temperature-compensated voltage reference and comparator circuit to monitor the status of VCC. The reset threshold is factory-trimmed to ensure accurate monitoring. The chip also features an active-low manual reset input for added flexibility.

Ordering Information

To order the DS1238A-10 or to request samples, visit the Maxim Integrated website or contact an authorized distributor. Ensure you have the correct part number, DS1238A-10, to receive the product with the specifications described here.