Maxim Integrated MAX6334UR17D3 Microprocessor Reset Circuit

The Maxim Integrated MAX6334UR17D3 is a highly reliable, low-power microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in conjunction with 3.3V-powered systems.

This precision voltage monitor ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The reset output is guaranteed to remain in the active state for a minimum of 140ms after VCC has risen above the reset voltage threshold, providing ample time for the system to stabilize.

Key Features:

• Precision Factory-Set V<sub>CC Reset Thresholds: The device comes with factory-set thresholds suitable for operation with a variety of supply voltages, ensuring compatibility with different microprocessor systems.
• Low 5μA Supply Current: Its low power consumption makes it an ideal choice for portable and battery-operated applications.
• 140ms min Power-On Reset Pulse Width: The extended pulse width ensures reliable system reset operation during power-up or brown-out conditions.
• Guaranteed Reset Valid to V<sub>CC = 1V: This feature guarantees that the reset signal will be valid even at very low voltage levels, enhancing system stability and reliability.
• Immune to Short V<sub>CC Transients: The circuit is designed to ignore short-duration voltage transients on the VCC line, preventing unnecessary resets due to noise and brief supply glitches.
• SOT23 Packaging: The compact SOT23 package allows for efficient use of board space in space-constrained applications.

The MAX6334UR17D3 is suitable for use in a wide range of applications including computers, controllers, intelligent instruments, critical μP and μC power monitoring. With its robust feature set and Maxim Integrated's reputation for quality, this reset circuit is an ideal choice for ensuring the integrity of your digital system.

For detailed specifications and application guidance, refer to the official datasheet and design resources provided by Maxim Integrated.