ON Semiconductor MC34164P-3RP Microprocessor Reset Circuit

The ON Semiconductor MC34164P-3RP is a precision microprocessor reset circuit device designed to monitor the supply voltage of microprocessors (µP) and digital systems. It provides a reliable and accurate solution to ensure that the system resets to a known state during power-up, power-down, or brown-out conditions. This component is essential in applications where the integrity of the operational state is critical, such as in embedded systems, automotive electronics, and industrial control units.

This reset circuit operates by sensing the voltage level of the supply line and generates a reset signal when this voltage drops below a predetermined threshold, known as the reset threshold voltage. The MC34164P-3RP has a fixed threshold voltage of 3.0V, making it suitable for use with 3.3V powered systems. Once the supply voltage falls below this level, the reset output becomes active (low) and remains so until the supply voltage recovers above the threshold level plus a hysteresis amount, ensuring a clean reset signal is provided.

The device comes in a compact DIP-8 (Dual In-line Package) form factor, which allows for easy integration into a variety of circuit boards. Its low power consumption makes it an ideal choice for battery-operated devices, where power efficiency is of utmost importance. Additionally, the MC34164P-3RP features an open-drain reset output, which allows for the flexibility to connect to different logic levels and interface with other components within the system.

ON Semiconductor's MC34164P-3RP is designed to withstand harsh operating conditions and is characterized for operation from -40°C to +85°C. Its robust design ensures reliable operation over a wide range of temperatures, making it a versatile choice for many applications. Moreover, the device's immunity to short duration transients on the supply voltage line helps in maintaining the stability of the system it is protecting.

In summary, the MC34164P-3RP from ON Semiconductor is a dependable and efficient solution for system reset applications, ensuring that digital systems operate reliably and recover gracefully from power disturbances.