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MAX821TUS+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX821TUS+T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX821TUS+T,MAX821TUST MAXIM 990 In Stock

Description and Introduction

4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay The MAX821TUS+T is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX821TUS+T  
- **Package:** SOT-23-5  
- **Type:** Voltage Monitor/Supervisory Circuit  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5% (typical)  
- **Reset Timeout Period:** Adjustable (external capacitor) or fixed (internal)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The MAX821TUS+T is a low-power voltage monitor designed to ensure proper system operation in μP and digital systems.  
- It monitors the power supply voltage and generates a reset signal if the voltage falls below a preset threshold.  
- It features a manual reset input for additional system control.  

### **Features:**
- **Low Quiescent Current:** Typically 5μA, making it suitable for battery-powered applications.  
- **Adjustable or Fixed Reset Threshold:** Supports customizable monitoring levels.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Small Form Factor:** Available in a compact SOT-23-5 package.  
- **Wide Operating Voltage Range:** Works from 1.2V to 5.5V, accommodating various logic levels.  
- **No External Components Required:** For fixed threshold versions.  

This device is commonly used in embedded systems, industrial controls, and portable electronics where reliable power monitoring is critical.

Application Scenarios & Design Considerations

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

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