MIC1232YN

Product Overview

• Category: Integrated Circuit
• Use: Reset Generator
• Characteristics: Low-power, Precision Voltage Monitor
• Package: DIP (Dual Inline Package)
• Essence: Monolithic CMOS Microprocessor Reset Circuit
• Packaging/Quantity: Tube/100 pieces

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

Detailed Pin Configuration

The MIC1232YN has a total of 8 pins:

1. VCC: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Active-Low Reset Output
5. TO: Timeout Output
6. CT: Capacitor Timing Input
7. TH: Threshold Input
8. VBAT: Battery Backup Input

Functional Features

• Monitors the supply voltage and generates a reset signal when the voltage drops below the threshold.
• Provides a manual reset input for immediate system reset.
• Includes a timeout output that indicates when the reset signal is active for an extended period.
• Offers a capacitor timing input for adjusting the reset timeout period.
• Allows battery backup input for maintaining operation during power loss.

Advantages and Disadvantages

Advantages: - Low-power consumption - Precise voltage monitoring - Wide operating voltage range - Adjustable reset timeout period - Battery backup support

Disadvantages: - Limited quantity per package (100 pieces)

Working Principles

The MIC1232YN is designed to monitor the supply voltage of a microprocessor or other digital systems. It continuously compares the supply voltage with a preset threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, signaling the system to reset.

The reset signal remains active for a specific timeout period, typically 140ms, to ensure that the system has enough time to stabilize before resuming normal operation. If the reset signal persists beyond this timeout period, the timeout output is activated, indicating a potential fault condition.

The reset timeout period can be adjusted by connecting an external capacitor to the CT pin. This allows flexibility in tailoring the reset behavior to specific system requirements.

Detailed Application Field Plans

The MIC1232YN is commonly used in various applications where reliable reset functionality is crucial. Some typical application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Communication equipment
5. Automotive electronics
6. Medical devices
7. Power management systems

Detailed and Complete Alternative Models

• MAX1232
• LTC1232
• DS1232
• TPS3820
• ADM803
• MCP120

These alternative models offer similar functionality and can be considered as replacements for the MIC1232YN in different applications.

In conclusion, the MIC1232YN is a versatile integrated circuit that provides precise voltage monitoring and reset generation capabilities. Its low-power consumption, wide operating voltage range, and adjustable timeout period make it suitable for various digital systems. However, the limited quantity per package may require additional procurement planning.