Maxim Integrated MAX706TCSA-TG069: Microprocessor Supervisory Circuit

The MAX706TCSA-TG069 from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with +5V-powered µPs.

This supervisory circuit offers several key features that make it an essential component in any microprocessor-based system:

• Power Supply Monitoring: The MAX706TCSA-TG069 ensures that the µP is only operational with a stable power supply by monitoring the system voltage. It asserts a reset signal to the µP during power-up, power-down, and brownout conditions. The reset signal remains asserted until the system voltage reaches the factory-trimmed reset threshold and then maintains it for a minimum reset timeout period after the supply voltage becomes valid to ensure proper system reset.
• Manual Reset: A manual reset feature allows for a system reset to be initiated at any time by the user or peripheral circuitry, adding an extra layer of control and safety.
• Watchdog Timer: The integrated watchdog timer serves as an autonomous system monitor, forcing the µP to reset if it fails to strobe within a preset timeout period. This helps to recover from a µP hang or software fault.
• Low Power Consumption: The device is designed for low power consumption, making it suitable for use in power-sensitive applications.
• Compact Package: The MAX706TCSA-TG069 comes in an 8-pin SOIC package, which is ideal for space-constrained applications.

Applications for this supervisory circuit include portable/battery-powered equipment, computers, controllers, intelligent instruments, critical µP power monitoring, and other µP-based systems that require monitoring for secure and stable operation.

Maxim Integrated's commitment to quality ensures that the MAX706TCSA-TG069 supervisory circuit is a dependable choice for designers looking to enhance system reliability and performance without incurring significant costs or design complexities.