Maxim Integrated's MAX6305UK00D2+T Microprocessor Reset Circuit

The MAX6305UK00D2+T is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. Manufactured by Maxim Integrated, a leader in analog and mixed-signal products, this compact device provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with a 3V power supply.

Featuring a precision voltage monitor, the MAX6305UK00D2+T ensures that the µP is held in reset until the system's power supply has stabilized. This reset signal is maintained for a minimum of 140ms after the supply voltage exceeds the reset threshold level, guaranteeing a proper system reset. The reset threshold for this particular device variant is factory-set to 2.93V, which is ideal for 3V-powered systems.

With its small size, the MAX6305UK00D2+T comes in a space-saving SOT-23 package, making it an excellent choice for use in portable devices where space is at a premium. The device is also available in a variety of reset threshold voltages, allowing for flexibility in different applications and compatibility with various microprocessors.

Key features of the MAX6305UK00D2+T include:

• Factory-preset reset threshold voltage suitable for 3V systems
• Guaranteed reset valid to VCC = 1V
• 140ms min power-on reset pulse width
• Low supply current of 3µA (typical)
• No external components required
• Immune to short VCC transients
• SOT-23 packaging for space-constrained applications

This device is particularly suited for portable electronics, computers, controllers, and intelligent instruments, where reliable monitoring of the power supply is critical to ensure proper operation. The MAX6305UK00D2+T is also characterized for the extended temperature range, making it suitable for industrial applications where temperatures may vary widely.

Overall, Maxim Integrated's MAX6305UK00D2+T is a versatile and reliable solution for system designers looking to enhance the stability and robustness of their digital systems with a minimal footprint and at a competitive cost.