DS1232LPSN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Reset Generator
• Characteristics: Low Power, Precision Timing
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides a reliable and accurate reset signal for microcontrollers and other digital systems.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Reset Threshold Voltage: 4.63V (typical)
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

1. VCC: Supply Voltage Input
2. GND: Ground
3. RESET: Active-Low Reset Output
4. MR: Manual Reset Input
5. GND: Ground
6. GND: Ground
7. GND: Ground
8. VCC: Supply Voltage Input

Functional Features

• Generates a reset signal when the supply voltage drops below the reset threshold.
• Monitors the supply voltage to prevent erratic operation of microcontrollers during power-up and power-down.
• Provides a manual reset input for external system control.
• Offers a precision timing circuit to ensure accurate reset signals.

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for battery-powered applications. - Wide operating voltage range allows compatibility with various systems. - Small package size saves board space. - Precision timing ensures reliable reset signals.

Disadvantages: - Lack of adjustable reset threshold may limit its use in certain applications. - Limited number of pins restricts additional functionalities.

Working Principles

The DS1232LPSN operates by monitoring the supply voltage and generating a reset signal when it drops below the specified threshold. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses. The manual reset input allows external control to initiate a reset. The precision timing circuit ensures accurate timing of the reset signals.

Detailed Application Field Plans

The DS1232LPSN is commonly used in various digital systems and microcontroller-based applications, including:

1. Embedded Systems: Provides reliable reset functionality for microcontrollers, ensuring proper initialization during power-up.
2. Industrial Control Systems: Ensures stable operation of control units by resetting them in case of power fluctuations or system errors.
3. Communication Equipment: Guarantees proper functioning of communication modules by resetting them when necessary.
4. Automotive Electronics: Supports automotive applications by providing reset capability to microcontrollers and other critical components.
5. Medical Devices: Ensures the integrity of medical equipment by resetting microcontrollers during power disturbances.

Alternative Models

• DS1232LP+: Similar to DS1232LPSN but available in a 16-pin DIP (Dual Inline Package) package.
• MAX1232ESA+: Offers similar functionality with adjustable reset threshold and watchdog timer features.
• MCP809T-450I/TT: Provides low-power reset generation with adjustable reset threshold and manual reset input.

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