The MIC8114TUY is a voltage supervisory circuit designed and manufactured by Micrel (now Microchip Technology). It's designed to monitor the power supply voltage of microprocessor-based systems and issue a reset signal to the microprocessor when the supply voltage falls below a specified threshold. This prevents erratic behavior and data corruption during power-up, power-down, and brownout conditions.

Applications

• Microprocessor and microcontroller systems
• Embedded systems
• Critical system monitoring
• Portable equipment
• Industrial control

Features

• Precision voltage monitoring
• Factory-trimmed reset threshold
• Active-low reset output
• Manual reset input
• Small package size

Benefits

• Prevents microprocessor malfunction due to low voltage
• Ensures proper system initialization
• Increases system reliability
• Simple implementation with minimal external components

Additional Details

The MIC8114TUY provides a highly accurate voltage monitoring function. The device incorporates a factory-trimmed reset threshold, eliminating the need for external components to set the threshold voltage. The active-low reset output remains asserted as long as the supply voltage is below the reset threshold or the manual reset input is asserted. Once the supply voltage rises above the threshold and the manual reset input is deasserted, the reset output is deasserted after a specified timeout period, allowing the microprocessor to properly initialize. Detailed specifications, including the precise reset threshold voltage, reset timeout period, and operating temperature range, can be found in the device's datasheet. The device is often used in conjunction with EEPROMs to ensure that data is not corrupted during power failures.