STM809TWX7F - Microprocessor Reset Circuit

The STM809TWX7F from STMicroelectronics is a highly precise microprocessor (µP) supervisory circuit designed to monitor the power supplies in digital systems. It provides a significant level of protection against low voltage, which can occur in fluctuating power supplies and battery-powered equipment. This device is particularly suitable for applications that require a high degree of reliability and accuracy in their power supply monitoring.

Key Features

• Precision Monitoring: With a reset threshold level of 2.93V, the STM809TWX7F ensures accurate monitoring of the system voltage, guaranteeing that the connected microprocessor is reset accurately and reliably.
• Low Power Consumption: The device is designed for low power consumption, making it ideal for use in power-sensitive applications, including portable and battery-operated devices.
• Reset Timeout: It features an active-low, push-pull reset output, with a fixed delay time of 140ms, providing sufficient time for the µP to initialize after a reset event.
• Temperature Range: The operating temperature range of -40°C to +85°C ensures the device can be used in a wide range of environments and applications.
• Small Footprint: Encased in a 3-lead SOT23 package, the STM809TWX7F occupies minimal board space, which is essential for space-constrained applications.
• RoHS Compliant: The device complies with RoHS (Restriction of Hazardous Substances) regulations, making it environmentally friendly and suitable for use in various markets worldwide.

Applications

The STM809TWX7F is versatile and can be used across various applications where accurate voltage monitoring is crucial. It is particularly useful in:

• Computers and servers
• Embedded systems
• Portable and battery-powered devices
• Industrial and automotive systems
• Consumer electronics

With its precision voltage monitoring and low power consumption, the STM809TWX7F from STMicroelectronics is an excellent choice for designers looking to enhance the reliability and performance of their digital systems.