STMicroelectronics STM6315SDW13F Microprocessor Reset Circuit

The STM6315SDW13F from STMicroelectronics is a highly reliable, precision microprocessor (µP) supervisory circuit designed to monitor the power supply and microprocessor activity in digital systems. It serves as a significant component for system reliability, providing a reset signal to the µP during power-up, power-down, and brown-out conditions. Its compact design and advanced features make it an ideal solution for a wide range of applications, including computers, controllers, and intelligent instruments.

Key Features

• Reset Threshold Voltage: The device is equipped with a 3.08V threshold voltage which is ideal for 3.3V powered circuits, ensuring that the µP is held in the reset state until the system voltage stabilizes.
• Low Power Consumption: With an extremely low supply current of 1.3µA, the STM6315SDW13F is optimized for battery-powered and portable applications, helping to extend battery life.
• Reset Delay Time: It features an internally fixed delay time of 200ms, which provides the system with enough time to stabilize during power-up or after a voltage disturbance before the µP starts to operate.
• Open Drain Reset Output: The reset output is of the open-drain type, allowing for the flexibility to connect to different logic levels and to wire-OR with other open-drain or open-collector outputs.
• Temperature Range: The device operates over an industrial temperature range of -40°C to +85°C, making it suitable for harsh environments.
• Package: It is available in a 5-lead SOT23 package, which is ideal for space-constrained applications.

Applications

• Computing Systems
• Embedded Processors and Controllers
• Portable and Battery-powered Devices
• Intelligent Instruments
• Automotive Systems

The STM6315SDW13F's combination of features ensures that the digital systems it is integrated with are protected from the unpredictable conditions associated with power supply irregularities. This tiny yet robust component from STMicroelectronics is a crucial building block for maintaining system integrity and preventing data corruption during adverse power conditions.