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MAX6821MUK-T from MAX,MAXIM - Dallas Semiconductor

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MAX6821MUK-T

Manufacturer: MAX, MAXIM

4.38 V, low-power mP supervisor with manual reset and watchdog timer

Partnumber Manufacturer Quantity Availability
MAX6821MUK-T,MAX6821MUKT MAX, MAXIM 1978 In Stock

Description and Introduction

4.38 V, low-power mP supervisor with manual reset and watchdog timer The MAX6821MUK-T is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
Maxim Integrated  

### **Part Number:**  
MAX6821MUK-T  

### **Description:**  
The MAX6821MUK-T is a precision voltage monitor designed to monitor system voltages in microprocessor-based applications. It provides reset signals to ensure proper system operation during power-up, power-down, and brownout conditions.  

### **Key Features:**  
1. **Voltage Monitoring:**  
   - Monitors 3.3V, 5V, or adjustable voltage supplies.  
   - Precision threshold options available.  

2. **Reset Output:**  
   - Active-low reset output (RESET) with a 140ms (min) delay upon power-up.  
   - Guaranteed reset valid down to VCC = 1V.  

3. **Manual Reset Input:**  
   - Pushbutton reset capability via the MR (Manual Reset) pin.  

4. **Low Power Consumption:**  
   - Low quiescent current (typically 15μA).  

5. **Packaging:**  
   - Available in a SOT23-5 package.  

6. **Operating Temperature Range:**  
   - Industrial: -40°C to +85°C.  

7. **Applications:**  
   - Microprocessor (μP) and microcontroller (μC) systems.  
   - Embedded systems, servers, and industrial controls.  
   - Battery-powered and portable devices.  

### **Additional Specifications:**  
- **Reset Threshold Accuracy:** ±1.5% (typical).  
- **Supply Voltage Range:** 1V to 5.5V.  
- **Output Type:** Push-pull, active-low RESET.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

4.38 V, low-power mP supervisor with manual reset and watchdog timer

Alternative Part Number

  • TPS3808G01DBVR --: Adjustable-threshold supervisor in SOT-23-5 with similar reset function and wide supply range, a common drop-in style replacement for MAX6821 supervisors.
  • ADM6821ARJZ-R7 --: Direct functional equivalent supervisor with manual reset and watchdog in SOT-23-5, well suited when the Maxim part is unavailable.
  • MCP1316MT-29FE/OT --: Low-power voltage supervisor with reset output in SOT-23-5, offering comparable monitoring behavior at a competitive price.
  • ADM6821ARJZ-RL7 --: Analog Devices' direct equivalent of the MAX6821 voltage supervisor in a SOT-23-5 package, with similar reset threshold and open-drain output, widely available and pin-compatible.
  • TPS3823-33DBVR --: TI voltage supervisor with comparable reset threshold and open-drain reset output in SOT-23-5, a common drop-in alternative for MAX6821 supervisor applications.
  • MCP1316T-30DI/OT --: Microchip voltage supervisor with similar reset threshold and active-low open-drain output in SOT-23-5, suitable as a functional replacement when the exact MAX6821 is unavailable.

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