Maxim Integrated DS1831AS+ MicroMonitor Chip

The Maxim Integrated DS1831AS+ is a robust MicroMonitor chip designed to safeguard microprocessor systems during power-up, operation, and power-down. This compact, highly integrated device is an essential component for ensuring the reliable operation of microprocessor (µP) systems, offering a range of monitoring functions that are critical for maintaining system integrity.

Key Features:

• Power Monitoring: The DS1831AS+ actively monitors the system's power supply voltage. It provides a precision power-on reset to the microprocessor upon detecting an out-of-tolerance power supply, ensuring that the µP and its peripherals are reset simultaneously.
• Manual Reset Input: An additional feature of the DS1831AS+ is the manual reset input, which allows for an external trigger to initiate a system reset. This is particularly useful for system maintenance or emergency recovery procedures.
• Programmable Watchdog Timer: With its integrated programmable watchdog timer, the DS1831AS+ can detect and recover from microprocessor malfunctions. The watchdog timer ensures that if the µP fails to provide a regular pulsing signal within a pre-set time frame, the system will automatically reset.
• High Integration: The DS1831AS+ combines multiple functions typically requiring several components into a single chip, which not only saves space on the PCB but also reduces the overall component count and system cost.

Applications:

The DS1831AS+ is ideal for use in a variety of applications where reliable system performance is essential. It is commonly found in:

• Embedded systems
• Microprocessor-based industrial controllers
• Computers and computer peripherals
• Intelligent instruments

Technical Specifications:

The DS1831AS+ operates over a wide voltage range and is available in a space-saving 8-pin SOIC package. It is designed to be compatible with 5V, 3.3V, and 3V systems, making it versatile for different microprocessor environments.

For designers and engineers looking for a reliable solution to enhance system stability and prevent data corruption due to power issues or µP glitches, the Maxim Integrated DS1831AS+ MicroMonitor chip is an excellent choice. Its combination of features ensures that systems are kept under close watch, ready to be reset to a known state the moment any irregularity is detected.