DS1232LPU+T&R

Product Overview

• Category: Integrated Circuit (IC)
• Use: Reset Generator
• Characteristics: Low Power, Precision Timing, Programmable Delay
• Package: 8-Pin PDIP (Plastic Dual In-Line Package)
• Essence: Provides a reliable and accurate reset signal for microprocessors and other digital systems.
• Packaging/Quantity: Tape and Reel (T&R), 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Timeout Period: Adjustable from 1ms to 10s
• Active-Low RESET Output
• Push-Pull or Open-Drain RESET Output Options
• Manual Reset Input
• Power-On Reset (POR) Signal
• Low Power Consumption: typically 20µA
• RoHS Compliant

Detailed Pin Configuration

The DS1232LPU+T&R has the following pin configuration:

1. VCC: Supply Voltage
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. RESET: Reset Output (Alternate Function)
6. GND: Ground
7. VCC: Supply Voltage
8. NC: No Connection

Functional Features

• Reliable Reset Generation: The DS1232LPU+T&R ensures a stable and accurate reset signal for microprocessors and digital systems, preventing erratic behavior during power-up or system malfunctions.
• Programmable Delay: The reset timeout period can be adjusted according to the specific requirements of the application, allowing flexibility in timing control.
• Low Power Consumption: With a typical current consumption of only 20µA, the DS1232LPU+T&R is designed to minimize power usage and extend battery life in portable devices.
• Manual Reset Input: The manual reset input allows for an external signal to trigger a system reset, providing additional control and flexibility.

Advantages and Disadvantages

Advantages: - Provides reliable and accurate reset signals - Programmable delay for timing control - Low power consumption - Manual reset input for external control

Disadvantages: - Limited to 8-pin PDIP package - Not suitable for applications requiring higher voltage ranges

Working Principles

The DS1232LPU+T&R operates by monitoring the supply voltage and generating a reset signal when the voltage falls below a certain threshold. It incorporates a precision voltage reference and a comparator to accurately detect power supply variations. The programmable delay feature allows users to set the timeout period before the reset signal is activated. The device also includes a manual reset input that can be used to override the automatic reset generation.

Detailed Application Field Plans

The DS1232LPU+T&R is widely used in various applications where a reliable reset signal is required. Some common application fields include:

1. Microprocessor Systems: Ensures proper initialization and synchronization of microprocessors during power-up or system failures.
2. Embedded Systems: Provides a stable reset signal for embedded systems, preventing unpredictable behavior during power cycling or software glitches.
3. Communication Equipment: Enables reliable reset functionality in networking devices, ensuring smooth operation and fault recovery.
4. Industrial Control Systems: Facilitates safe and controlled restarts in industrial automation systems, minimizing downtime and improving productivity.
5. Consumer Electronics: Enhances the reliability of consumer electronic devices such as smart home appliances, gaming consoles, and audio/video equipment.

Detailed and Complete Alternative Models

1. MAX809: Low-Power Microprocessor Reset Circuits
2. LTC2950: Push-Button On/Off Controller with Reset
3. TPS3808: Voltage Supervisor with Programmable Delay
4. ADM6315: Microprocessor Supervisory Circuit with Manual Reset
5. MCP101: Precision Voltage Detector with Adjustable Timeout

These alternative models offer similar functionality and can be considered as alternatives to the DS1232LPU+T&R based on specific application requirements.

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