Maxim Integrated MAX6305UK00D3-T Microprocessor Reset Circuit

The MAX6305UK00D3-T is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with a 3V power supply voltage. This device is particularly suitable for portable and battery-powered applications due to its low power consumption and small footprint.

The MAX6305UK00D3-T comes in a space-saving SOT-23 package, making it an ideal choice for systems where board space is at a premium. The device ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. It achieves this by asserting a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold level. The reset output remains asserted for a preset timeout period after VCC has risen above the reset threshold, ensuring the system has sufficient time to stabilize.

Key features of the MAX6305UK00D3-T include:

• A precise factory-set VCC reset threshold.
• An extended reset timeout period to ensure proper system reset.
• Low supply current, making it suitable for battery-operated applications.
• Immunity to short VCC transients.
• Capability to operate over a wide temperature range, ensuring reliability in various operating conditions.

The device's push-pull reset output, which is denoted by the 'UK' suffix in the part number, eliminates the need for an external pull-up resistor, further simplifying design and reducing component count. The '00' in the part number indicates the standard reset threshold level suitable for 3V systems, and the 'D3' suffix specifies the reset timeout period.

Whether it's used in computers, controllers, intelligent instruments, or portable consumer products, the Maxim Integrated MAX6305UK00D3-T provides a simple and efficient solution for system monitoring and power-on reset control, ensuring reliable operation of the digital system it serves.