CAT811TTBI-GT3

Supervisors Overview

The CAT811TTBI-GT3 is a microprocessor supervisory circuit designed to monitor power supplies within a voltage range of 1.2V to 5.5V. It features a fixed threshold voltage of 3.08V and provides an active-low, push-pull output signal. The device is housed in a compact SOT-143-4 surface-mount package. This component serves as a direct replacement for the MAX811 in compatible applications.

Supervisors Feature Summary

• Monitors single power supply input
• Active-low push-pull output configuration
• Direct replacement for MAX811

Supervisors Applications

• Microprocessor power supply supervision
• Embedded system reset circuits
• Portable electronic devices

Supervisors Procurement Notes

This component is classified as End-of-Life (EOL) by onsemi. It is scheduled for obsolescence and will be discontinued by the manufacturer. Procurement should focus on verifying availability through authorized distributors or identifying parametric equivalents from other suppliers before finalizing design implementations.

Supervisors Selection Notes

Select this part only if legacy compatibility with MAX811 pinouts and functions is required. Verify that the 3.08V threshold aligns with the target system's logic levels. Due to the EOL status, alternative solutions with longer lifecycle support should be evaluated for new designs to ensure long-term supply chain stability.

Supervisors Part Context

The CAT811 series consists of microprocessor supervisory circuits. The TTBI suffix indicates specific threshold and package variations within the family. These circuits are engineered to provide reliable reset signals when power supply voltages drop below specified thresholds, ensuring proper system initialization.

Supervisors Replacement Considerations

ADM811-3TARTZ-RL7 is listed as a parametric equivalent substitute available from Analog Devices Inc.