The STM690SM6F from STMicroelectronics is a highly reliable, low-power supervisor IC designed to provide microprocessor (µP) supervisory functions. This microcircuit is crucial for managing power supplies and ensuring that systems operate within safe parameters. It is particularly suitable for battery-powered devices due to its low energy consumption.

Key Features

• Power-On Reset Generator: The device ensures that the µP powers up in a known state by generating a reset pulse when the supply voltage reaches the reset threshold level.
• Low Supply Current: With a typical supply current of only 1 µA, the STM690SM6F is optimized for battery-operated systems where power efficiency is critical.
• Programmable Reset Delay: It offers an adjustable delay time after the supply voltage becomes valid, allowing designers to tailor the reset timing to specific system requirements.
• Watchdog Timer: The built-in watchdog timer improves system reliability by resetting the µP if it fails to strobe within a preset time frame, indicating the system may have become unresponsive.
• Manual Reset Input: This feature allows for an external trigger to initiate a system reset, providing an additional layer of control.

Applications

The STM690SM6F is versatile and can be used across a wide range of applications, including:

• Computers and computer peripherals
• Embedded systems
• Battery-powered equipment
• Industrial systems

Technical Specifications

The device is offered in an SOT-23-5 package, which is ideal for space-constrained applications. It operates over a temperature range of -40°C to +85°C, ensuring reliable performance under varying environmental conditions. The supervisor IC has a reset threshold voltage typically at 3.08V, which is suitable for systems that run on 3.3V power supplies.

For engineers and designers looking for a robust power management solution, the STM690SM6F provides an excellent balance of performance, power efficiency, and reliability.