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MAX705ESA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX705ESA+

Manufacturer: MAXIM, MAX

Low-Cost, µP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX705ESA+,MAX705ESA MAXIM, MAX 6808 In Stock

Description and Introduction

Low-Cost, µP Supervisory Circuits The MAX705ESA+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX705ESA+  
- **Type:** Microprocessor Supervisor  
- **Package:** 8-SOIC (150 mil)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** 4.40V, 4.65V, 4.00V, 3.08V (adjustable)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 35μA (typ)  
- **Watchdog Timer:** 1.6s (typ)  
- **Manual Reset Input:** Yes (active-low)  
- **Power-Fail Comparator:** No  

### **Descriptions:**
The MAX705ESA+ is a precision voltage monitor designed to ensure proper operation of microprocessors in power-sensitive applications. It provides reset signals to the μP during power-up, power-down, or brownout conditions, preventing system malfunctions. It includes a watchdog timer to detect software lockups and a manual reset input for user-initiated resets.

### **Features:**
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Low Power Consumption:** 35μA typical quiescent current.  
- **Adjustable Reset Threshold:** Multiple fixed and adjustable options.  
- **Watchdog Timer:** Detects software failures.  
- **Manual Reset Capability:** Allows external reset triggering.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
- **Industrial Temperature Range:** -40°C to +85°C.  

This information is sourced from Maxim Integrated's official datasheet for the MAX705ESA+.

Application Scenarios & Design Considerations

Low-Cost, µP Supervisory Circuits

Alternative Part Number

  • ADM705ARZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, widely available and functionally equivalent to the MAX705.
  • TL7705ACP --: Classic 5V supply voltage supervisor with reset output, similar function and commonly used as a replacement in supervisory applications.
  • MC33064P-5 --: Undervoltage sensing circuit with reset output, suitable for 5V monitoring and a cost-effective alternative for supervisory duties.

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