ON Semiconductor MC34164D-3R2 Microprocessor Reset Circuit

The MC34164D-3R2 is a precision undervoltage sensing microprocessor reset circuit developed by ON Semiconductor. This device is specifically designed to monitor the power supply voltage of digital systems and ensure that the system's microprocessor and associated circuitry have a reset signal active whenever the supply voltage drops below a predetermined threshold. This is vital for maintaining the integrity of the system's operation and preventing erratic behavior that can occur if the microprocessor attempts to operate below its specified power supply voltage.

Built with a high level of accuracy, the MC34164D-3R2 features a low threshold voltage of 3.2V, which is suitable for 3.3V logic systems. It has a tight threshold tolerance that ensures reliable operation of the system it is protecting. The device has a fast response time to voltage drops, which is crucial for systems that cannot afford to have even a momentary lapse in proper functioning due to power issues.

The MC34164D-3R2 comes in a compact SOIC-8 package, which makes it an excellent choice for space-constrained applications. Its low power consumption is an additional benefit, making it suitable for use in portable and battery-operated devices where power efficiency is paramount.

Key features of the MC34164D-3R2 include:

• Operating voltage range suitable for 3.3V logic systems
• Precision monitoring of 3.2V power supply voltage
• Low power consumption
• Fast response time to ensure system reliability
• Compact SOIC-8 packaging for ease of integration
• Guaranteed Reset output down to Vcc = 1.0V
• Operating temperature range from -40°C to +85°C

This reset circuit is ideal for use in a variety of applications, including computers, controllers, intelligent instruments, portable/battery-powered equipment, and any other systems that require a stable operation and an assured reset during power-up, power-down, or brown-out conditions.

Overall, the MC34164D-3R2 from ON Semiconductor is a robust solution for protecting sensitive digital systems from the dangers of undervoltage conditions, thereby enhancing system reliability and longevity.