DS1231S-20/T&R

Product Overview

Category

The DS1231S-20/T&R belongs to the category of supervisory circuits, specifically designed for use in microprocessor systems.

Use

It is used to monitor the power supply voltage and provide a reset signal to the microprocessor in the event of a power failure or when the system is not operating within specified limits.

Characteristics

• Package: The DS1231S-20/T&R comes in a 16-pin SOIC (Small Outline Integrated Circuit) package.
• Essence: Its essence lies in providing reliable power supply monitoring and reset generation for microprocessor-based systems.
• Packaging/Quantity: It is typically available in tape and reel packaging with a specific quantity per reel.

Specifications

The DS1231S-20/T&R operates over a wide voltage range and can detect power failures as brief as 2ms. It has a low quiescent current and is capable of generating a reset pulse of programmable duration.

Detailed Pin Configuration

The DS1231S-20/T&R features a 16-pin configuration with specific pins dedicated to power supply monitoring, reset output, and connection to the microprocessor.

Functional Features

• Power Supply Monitoring: Constantly monitors the power supply voltage to ensure it remains within acceptable limits.
• Reset Generation: Generates a reset signal to the microprocessor when the power supply voltage falls below the specified threshold.
• Programmable Reset Duration: Allows for customization of the reset pulse duration to suit different system requirements.

Advantages and Disadvantages

Advantages

• Reliable power supply monitoring
• Customizable reset duration
• Wide operating voltage range

Disadvantages

• Limited to microprocessor-based systems
• Requires careful consideration of reset timing in complex applications

Working Principles

The DS1231S-20/T&R works by continuously comparing the monitored power supply voltage with a preset threshold. When the voltage falls below this threshold, it triggers the generation of a reset signal to ensure the proper functioning of the microprocessor.

Detailed Application Field Plans

The DS1231S-20/T&R is commonly used in embedded systems, industrial control systems, and automotive electronics where reliable power supply monitoring and reset generation are critical for system stability and integrity.

Detailed and Complete Alternative Models

• MAX1231: Offers similar power supply monitoring and reset generation capabilities.
• TC1270: Provides power supply supervision and reset functions for microcontroller-based systems.

In conclusion, the DS1231S-20/T&R is a vital component in ensuring the reliable operation of microprocessor-based systems by effectively monitoring the power supply and generating reset signals when necessary.

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