The MAX706TCUA 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 battery-powered systems, computers, controllers, and intelligent instruments.

Key Features

• Reset Output: The device generates a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it active for a minimum of 140ms after VCC has risen above the reset threshold level. This ensures the µP system resets cleanly during power-up, power-down, and brownout conditions.
• Voltage Monitoring: It offers precision monitoring of +5V, +3.3V, and +3V power-supply voltages.
• Manual Reset Input: A manual reset input is provided to allow a pushbutton to initiate system reset.
• Watchdog Timer: A watchdog timer is on-board for system failure detection, which requires periodic servicing by the host controller within a selectable time window to avoid system reset.
• Low Power Consumption: Designed for low power consumption, the device is ideal for portable and battery-powered applications.

Applications

The MAX706TCUA is suitable for a wide range of applications that require precise voltage monitoring and reliable system reset functionality. It is commonly used in:

• Computers and Servers
• Embedded Systems
• Battery-Powered Equipment
• Intelligent Instruments
• Portable Consumer Electronics

Technical Specifications

The device is available in a small 8-pin µMAX package and is specified over the extended commercial temperature range of 0°C to +70°C. It has a supply voltage range of 1V to 5.5V, which allows for flexibility in various system designs. The MAX706TCUA also features a debounced manual-reset input, which can be driven by an external source such as a pushbutton to trigger a system reset.

For more detailed technical specifications and application guidance, designers should refer to the official datasheet and product manuals provided by Maxim Integrated.