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MAX705EUA from MAXIM,MAXIM - Dallas Semiconductor

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MAX705EUA

Manufacturer: MAXIM

Low-Cost, µP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX705EUA MAXIM 69 In Stock

Description and Introduction

Low-Cost, µP Supervisory Circuits The MAX705EUA is a microprocessor (µP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX705EUA  
- **Package:** 8-pin µMAX  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** 140ms (minimum)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 35µA (typical)  
- **Manual Reset Input:** Yes (active-low)  
- **Watchdog Timer:** Yes (1.6s timeout)  
- **Power-Fail Comparator:** No  

### **Descriptions:**
The MAX705EUA is a µP supervisory circuit designed to monitor power supply voltages and provide a reset signal to the µP during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect µP code execution failures and a manual reset input for external system reset control.  

### **Features:**
- **Precision Voltage Monitoring:** Ensures µP reset during undervoltage conditions.  
- **Adjustable or Fixed Reset Threshold:** Supports multiple voltage levels.  
- **Watchdog Timer:** Detects µP lockups with a 1.6s timeout.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Low Power Consumption:** 35µA typical quiescent current.  
- **Small Form Factor:** 8-pin µMAX package for space-constrained applications.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
- **Industrial Temperature Range:** Operates from -40°C to +85°C.  

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

Application Scenarios & Design Considerations

Low-Cost, µP Supervisory Circuits

Alternative Part Number

  • ADM705AN --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, direct functional equivalent to the MAX705.
  • TL7705ACP --: Widely available supply-voltage supervisor with reset output, suitable replacement for basic reset/supervisory functions.
  • MC33064P --: Undervoltage sensing circuit providing reset signal, usable as a lower-cost supervisory alternative with similar function.
  • MC33064P-5 --: Low-cost 5V voltage supervisor with reset output, covers the core monitoring function though watchdog features may differ.

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