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MAX823TEUK from MAXIM,MAXIM - Dallas Semiconductor

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MAX823TEUK

Manufacturer: MAXIM

Microprocessor supervisory circuit. Reset threshold 3.08V. Active-low reset. Watchdog input. Manual reset input.

Partnumber Manufacturer Quantity Availability
MAX823TEUK MAXIM 1805 In Stock

Description and Introduction

Microprocessor supervisory circuit. Reset threshold 3.08V. Active-low reset. Watchdog input. Manual reset input. The MAX823TEUK is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor Supervisor  
- **Package:** SOT-23-5  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or factory-set (e.g., 2.63V, 3.08V, 4.38V, etc.)  
- **Reset Timeout Period:** 140ms (min)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 6μA (typical)  

### **Descriptions:**
The MAX823TEUK monitors system voltage and provides a reset signal to the microprocessor when the voltage falls below a preset threshold. It ensures proper system initialization and prevents erratic operation during power-up, power-down, or brownout conditions.  

### **Features:**
- **Low Power Consumption:** Minimal current draw (6μA typical).  
- **Manual Reset Input:** Allows for external reset triggering.  
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Small Form Factor:** SOT-23-5 package for space-constrained applications.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
- **No External Components Required:** Simplifies circuit design.  

This device is commonly used in embedded systems, industrial controls, and battery-powered applications where reliable voltage monitoring is critical.

Application Scenarios & Design Considerations

Microprocessor supervisory circuit. Reset threshold 3.08V. Active-low reset. Watchdog input. Manual reset input.

Alternative Part Number

  • ADM823TYKSZ --: Same function (microprocessor supervisory circuit with watchdog and manual reset) in a 5-pin SOT-23 package, from the same product family lineage after Analog Devices acquired Maxim.
  • TPS3823-33DBVT --: Pin-compatible supervisory circuit with watchdog timer and manual reset in SOT-23-5, widely available and commonly used as a drop-in replacement.
  • CAT823TTDI-GT3 --: Low-cost supervisory circuit with watchdog and manual reset in SOT-23-5, functionally equivalent and suitable for similar reset threshold applications.
  • ADM823TYKSZ-R7 --: Supervisor IC with similar reset threshold and watchdog function, pin-compatible in many designs and from the same corporate family as Maxim.
  • TPS3823-33DBVR --: Widely available voltage supervisor with watchdog and manual reset, comparable threshold and low power consumption.

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