Maxim Integrated MAX705CPA Microprocessor Supervisory Circuit

The MAX705CPA from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected events. This compact and efficient component is essential for managing system resets and monitoring power supply conditions in microprocessor-based systems. Its primary function is to ensure that the µP and its peripherals are reset properly during power-up, power-down, and brown-out conditions.

Key Features

• Precision Voltage Monitoring: The MAX705CPA keeps a watchful eye on the power supply voltage and ensures that it remains within safe operating limits. It includes a precision voltage monitor that triggers a reset when the supply voltage drops below a preset threshold, thus safeguarding the system.
• Manual Reset Capability: An external manual reset input allows for a system reset to be initiated at any time, providing additional control to service personnel or system users.
• Low Power Consumption: Designed with power efficiency in mind, this supervisory circuit consumes minimal power, making it suitable for battery-operated applications.
• Reset Timeout: After the supply voltage returns to acceptable levels, the MAX705CPA maintains the reset condition for a specified period to allow the system's power supply and processor to stabilize.
• Versatile Applications: The MAX705CPA is versatile and can be used in a wide range of applications, including computers, controllers, intelligent instruments, and critical µP power monitoring.

Product Specifications

• Package: 8-Pin DIP (Dual In-line Package)
• Operating Temperature: 0°C to +70°C
• Supply Voltage Range: 4.5V to 5.5V
• Reset Threshold Voltage: Typically set at 4.65V
• Reset Active Time: 200ms minimum reset pulse width

The MAX705CPA supervisory circuit is a testament to Maxim Integrated's commitment to producing high-quality, reliable components that enhance system performance and stability. By integrating this device into your system, you can achieve a higher level of protection against power-related issues and ensure consistent operation of your microprocessor-based applications.