Product Overview: MAX691AEWE+ from Maxim Integrated

The MAX691AEWE+ is a sophisticated microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in battery-powered systems. This integrated circuit ensures that the µP is reset to a known state during power failures, keeping your digital equipment running smoothly and reliably.

Key Features

• Power Supply Monitoring: The MAX691AEWE+ offers precise monitoring of the power supply voltage. It guarantees that the system has a stable and adequate supply voltage, issuing a reset to the µP whenever the supply voltage drops below a preset threshold.
• Automatic Battery Backup Switching: This component includes an automatic backup battery switchover circuit, which ensures uninterrupted power supply to the memory when the main power fails.
• Power-On Reset: It delivers a power-on reset signal to the µP, ensuring that the system starts in a known state every time it is powered up.
• Memory Write Protection: During power failure conditions, the MAX691AEWE+ write-protects memory to prevent erroneous writing while the µP is in an indeterminate state.
• Low Power Consumption: Designed for efficient operation, the MAX691AEWE+ consumes minimal power, making it ideal for battery-powered applications.
• Watchdog Timer: The integrated watchdog timer improves system reliability by resetting the µP if it fails to strobe within a preset time period.

Applications

The MAX691AEWE+ is versatile and can be used in a variety of applications, including:

• Computers and Controllers
• Intelligent Instruments
• Portable/Battery-Powered Equipment
• Critical µP Power Monitoring

Package and Quality

Encased in a 16-SO Wide package, the MAX691AEWE+ is designed for surface-mount technology, allowing for compact and efficient PCB designs. Maxim Integrated ensures high-quality standards, and this supervisory circuit is no exception, providing reliable performance for critical applications.

With its robust feature set, the MAX691AEWE+ from Maxim Integrated is an essential component for systems that require vigilant monitoring of power supply and µP health, ensuring systems are safe, stable, and secure.