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MAX708EPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX708EPA

Manufacturer: MAXIM, MAX, MAXIM,MAXIM

Low-Cost, uP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX708EPA MAXIM, MAX, MAXIM,MAXIM 40531 In Stock

Description and Introduction

Low-Cost, uP Supervisory Circuits The MAX708EPA 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:** MAX708EPA  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (1.6V, 2.2V, 2.7V, 3.0V, 3.3V, 5.0V)  
- **Reset Timeout Period:** 200ms (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Manual Reset Input:** Active-low (MR)  
- **Watchdog Timer:** 1.6s timeout (typical)  
- **Power-On Reset (POR) Circuitry:** Yes  
- **Supply Current:** 35µA (typical)  

### **Descriptions:**
The MAX708EPA is a µP supervisory circuit designed to monitor power supply voltages and provide a reset signal to the microprocessor in case of power failure, brownout, or manual reset conditions. It integrates a watchdog timer, reset circuitry, and power-fail comparator in a single 8-pin package.  

### **Features:**
- **Precision Voltage Monitoring:** Ensures reliable µP reset during power-up, power-down, and brownout conditions.  
- **Adjustable or Fixed Reset Thresholds:** Supports multiple voltage levels for system flexibility.  
- **Watchdog Timer:** Monitors µP activity and triggers a reset if the µP fails to respond.  
- **Manual Reset Input:** Allows external push-button reset control.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Power-Fail Comparator:** Early warning for impending power loss.  
- **Guaranteed Reset Output Valid Down to VCC = 1V.**  

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

Application Scenarios & Design Considerations

Low-Cost, uP Supervisory Circuits

Alternative Part Number

  • ADM708AN --: Pin-compatible microprocessor supervisory circuit with the same reset threshold and active-low reset function, widely available and a direct functional drop-in.
  • TL7705ACP --: Classic 5V supply voltage supervisor with adjustable reset delay, functionally equivalent for power-on reset and brownout detection in 8-pin DIP.
  • MC34064P-5 --: 5V undervoltage sensing circuit providing reset output, a low-cost alternative for supply monitoring where full MAX708 feature set is not required.
  • MC34064P --: Undervoltage sensing circuit providing reset for microprocessor systems, suitable alternative when exact pinout match is not critical.

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