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MAX794CSE from MAXIM,MAXIM - Dallas Semiconductor

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MAX794CSE

Manufacturer: MAXIM

3.0V/3.3V Adjustable Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX794CSE MAXIM 52 In Stock

Description and Introduction

3.0V/3.3V Adjustable Microprocessor Supervisory Circuits The MAX794CSE is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 16-pin SOIC (CSE denotes the package type)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5% (typical)  
- **Reset Timeout Period:** Adjustable (typically 200ms)  
- **Watchdog Timer:** Programmable timeout (1.6s nominal)  
- **Manual Reset Input:** Available (active-low)  
- **Power-Fail Comparator:** Included for early warning  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  

### **Descriptions:**
The MAX794CSE is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect software crashes and a power-fail comparator for early power-loss warnings.

### **Features:**
- **Voltage Monitoring:** Monitors +5V, +3.3V, or adjustable voltage rails.  
- **Reset Output:** Active-low RESET signal with a 200ms delay.  
- **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.  
- **Manual Reset Input:** Allows external push-button reset control.  
- **Power-Fail Comparator:** Provides early warning for impending power loss.  
- **Low Quiescent Current:** Typically 50μA (minimizes power consumption).  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  

This information is strictly factual from the available knowledge base.

Application Scenarios & Design Considerations

3.0V/3.3V Adjustable Microprocessor Supervisory Circuits

Alternative Part Number

  • ADM8696ARWZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, direct functional replacement for the MAX794 in many designs.
  • LTC1232CS8 --: Similar microprocessor supervisor IC offering reset and watchdog timing, suitable as a functional substitute with comparable supply monitoring.
  • DS1232LPS --: Microprocessor monitor with reset and watchdog features from the same vendor family, usable as an alternative when exact MAX794 timing is not critical.

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