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MAX821LUS+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX821LUS+T

Manufacturer: MAXIM

4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay

Partnumber Manufacturer Quantity Availability
MAX821LUS+T MAXIM 8655 In Stock

Description and Introduction

4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay The MAX821LUS+T is a microprocessor (μP) voltage monitor manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX821LUS+T  
- **Package:** SOT-23-5  
- **Type:** Voltage Monitor  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Threshold Accuracy:** ±1.5% (typical)  
- **Reset Timeout Period:** Adjustable (external capacitor) or fixed (internal)  
- **Quiescent Current:** 5μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The MAX821LUS+T is a low-power voltage monitor designed to ensure proper system operation by monitoring the power supply voltage. It provides a reset signal to the microprocessor when the supply voltage falls below a preset threshold, ensuring reliable system initialization and shutdown.

### **Features:**
- **Low Power Consumption:** Only 5μA typical quiescent current.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V.  
- **High Accuracy:** ±1.5% threshold accuracy ensures reliable monitoring.  
- **Adjustable or Fixed Reset Timeout:** Configurable via an external capacitor or internal timer.  
- **Small Form Factor:** Available in a compact SOT-23-5 package.  
- **Manual Reset Input:** Allows external reset control.  
- **Power-On Reset (POR) Function:** Ensures proper startup.  

This device is commonly used in battery-powered systems, embedded controllers, and other applications requiring reliable voltage monitoring.

Application Scenarios & Design Considerations

4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay

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