STM1816RWX7F Microprocessor Reset Circuit

The STM1816RWX7F from STMicroelectronics is a highly precise microprocessor (µP) supervisory circuit designed to monitor the power supplies in digital systems. This device ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The STM1816RWX7F is an essential component for enhancing system reliability and preventing software corruption in various applications.

This device features a factory-trimmed reset threshold voltage, ensuring accurate monitoring of the VCC. It is specifically designed to operate with a supply voltage ranging from 1.0V to 5.5V, which makes it suitable for low power portable devices. The STM1816RWX7F boasts an extremely low supply current of 4µA (typical), making it an ideal choice for battery-operated applications where power efficiency is critical.

One of the key features of the STM1816RWX7F is its built-in ability to generate a reset signal for a minimum of 140ms (typical) after VCC has risen above the reset threshold level. This ensures that the system has sufficient time to stabilize before the processor starts operating. Additionally, the device offers a manual reset input, which allows for a system reset to be initiated at any time by the user or other system components.

The STM1816RWX7F is available in a compact SOT-23 package, making it suitable for use in space-constrained applications. Its small footprint also allows for more efficient use of PCB space in larger systems. The device's operating temperature range of -40°C to +85°C ensures that it can perform reliably in a wide range of environments and applications.

Overall, the STM1816RWX7F is a versatile and reliable solution for system reset management. It is well-suited for use in microprocessor-based systems, embedded controllers, and other digital devices that require a high degree of operational stability and integrity.

For more detailed information, datasheets, and support, visit the official STMicroelectronics website or contact their support team.