ON Semiconductor MC34164D-5 Microprocessor Voltage Monitor

The MC34164D-5 is a precision under-voltage sensing integrated circuit designed by ON Semiconductor. This device is an essential component for microprocessor systems, providing a reliable method to monitor power supply voltages and ensure that systems operate within their specified voltage ranges.

This voltage monitor is particularly suitable for battery-powered devices, where maintaining the correct operating voltage is critical for both performance and longevity. The MC34164D-5 monitors the supply line and guarantees that the system's voltage does not fall below a predetermined threshold, which for this model is set at 4.5 volts.

When the supply voltage drops below the 4.5V threshold, the MC34164D-5 asserts a reset signal that can be used to reset a microprocessor, thus preventing any erratic operation due to low voltage conditions. The reset signal remains active until the supply voltage returns to an acceptable level, ensuring the system has stabilized before normal operation resumes.

Key features of the MC34164D-5 include:

• Precision monitoring of 5V power supply lines.
• Low supply current making it ideal for battery-operated devices.
• Guaranteed RESET output down to Vcc = 1.0V.
• Fast response time to rapidly changing supply voltages.

The device comes in a compact SOIC-8 package, which is suitable for space-constrained applications. It is also characterized for operation from -40°C to +85°C, covering a wide range of environmental conditions, making it versatile for use in various applications.

Whether you're designing a microprocessor-based system that requires precise voltage monitoring or looking to enhance the reliability of your existing equipment, the ON Semiconductor MC34164D-5 provides an efficient and cost-effective solution. Its ease of integration and robust performance make it a go-to component for engineers focused on system stability and longevity.