The STM811L from STMicroelectronics is a highly reliable, low-power microprocessor reset circuit, designed to monitor the supply voltage of microprocessor (µP) systems, ensuring proper operation during power-up, power-down, and brown-out conditions. This compact device is an essential component for maintaining system integrity and preventing data corruption in various electronic applications.

Key Features

• Precision Monitoring: The STM811L offers precise monitoring of the supply voltage with a factory-trimmed threshold, ensuring consistent performance and reliable operation across different units.
• Low Power Consumption: Designed for power-sensitive applications, this device consumes minimal power, making it suitable for battery-operated systems.
• Manual Reset Input: It includes a manual reset input that allows users to trigger a reset pulse manually, providing additional control over the system's reset behavior.
• Reset Time Delay: The device features a built-in delay before issuing a reset signal, allowing the power supply to stabilize and the system to recover from transient faults.
• Open Drain Reset Output: The open-drain reset output ensures compatibility with various microprocessors and logic systems, offering flexibility in system design.

Applications

The STM811L is a versatile component suitable for a wide range of applications, including:

• Computers and Network Equipment
• Embedded Systems
• Portable/Battery-Powered Devices
• Consumer Electronics
• Industrial Controllers

Technical Specifications

The STM811L operates with a supply voltage range typically from 1.2V to 5.5V, accommodating various system voltages. The reset threshold levels are available in standard increments, tailored to specific system requirements. The device is offered in a compact SOT23-5 package, making it suitable for space-constrained applications.

Conclusion

With its precision voltage monitoring, low power consumption, and flexible design options, the STM811L from STMicroelectronics is an ideal solution for ensuring the stability and reliability of microprocessor systems across a broad spectrum of applications. Its robust feature set ensures it can meet the demands of modern electronic systems, providing peace of mind for both designers and end-users.