Maxim Integrated MAX6703SKA+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX6703SKA+T is a highly reliable and precise microprocessor (µP) supervisory circuit designed to monitor power supplies and µP activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring and processor supervision.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6703SKA+T features an active-low reset output, with a factory-trimmed reset threshold voltage suitable for a variety of applications. The reset signal is asserted when the VCC supply voltage falls below the reset threshold and remains asserted for a minimum reset timeout period after VCC rises above the reset threshold, ensuring a proper system reset.

The device comes in a compact SOT-23 package, making it ideal for space-constrained applications. It operates over a wide supply voltage range and consumes low quiescent current, making it suitable for battery-powered devices. Additionally, the MAX6703SKA+T supports a wide operating temperature range, ensuring reliable performance under varying environmental conditions.

Key features of the MAX6703SKA+T include:

• Factory-set reset threshold voltages for 3V, 3.3V, and 5V power supplies
• Minimum reset timeout period to ensure proper system reset
• Low supply current, ideal for portable applications
• Guaranteed reset valid to VCC = 1V for low voltage operations
• Immune to short VCC transients
• Compact 5-pin SOT-23 package suitable for space-saving designs

Applications for the MAX6703SKA+T include portable/battery-powered equipment, computers, controllers, intelligent instruments, critical µP and µC power monitoring, and embedded systems. It is an essential component for any design where reliable system operation and power monitoring are critical, ensuring that digital systems function correctly even in the event of power supply fluctuations.

Overall, the Maxim Integrated MAX6703SKA+T is a versatile and efficient solution for system designers looking to enhance the reliability and performance of their digital systems with robust µP supervision.