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MAX708RESA from MAX,MAXIM - Dallas Semiconductor

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MAX708RESA

Manufacturer: MAX, MAXIM, MAXIM

+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX708RESA MAX, MAXIM, MAXIM 28592 In Stock

Description and Introduction

+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits The **MAX708RESA** 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 data:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (2.63V, 2.93V, 3.08V, 4.38V, 4.63V)  
- **Reset Timeout Period:** 200ms (typical)  
- **Manual Reset Input:** Active-low (MR)  
- **Power-Fail Comparator:** Included for early warning of power failure  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The MAX708RESA monitors system voltage and provides a reset signal to the microprocessor during power-up, power-down, or brownout conditions.  
- It ensures reliable system operation by holding the microprocessor in reset until the supply voltage stabilizes.  
- The device includes a power-fail comparator for monitoring an auxiliary voltage, providing an early warning before a power failure occurs.  

### **Features:**
- **Precision Voltage Monitoring:** Ensures accurate reset thresholds.  
- **Manual Reset Input:** Allows external pushbutton reset control.  
- **Power-Fail Comparator:** Monitors an additional voltage rail for early warning.  
- **Low Power Consumption:** Typically 50μA supply current.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reliable reset even at low voltages.  
- **Space-Saving 8-Pin SOIC Package:** Suitable for compact designs.  

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

Application Scenarios & Design Considerations

+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits

Alternative Part Number

  • ADM708RARZ --: Pin-compatible supervisory IC with the same reset threshold and active-low reset function, widely available and a direct functional drop-in.
  • TL7705ACDR --: Classic voltage supervisor with adjustable threshold and reset output, commonly used as a substitute for MAX708-type supervisors.
  • MCP130T-475I/TT --: Low-cost 4.75V reset supervisor in SOT-23, suitable replacement when board space and cost are priorities.
  • ADM708ARZ --: Pin-compatible supervisory IC with reset output and watchdog functions, direct functional equivalent in an SOIC-8 package.
  • TL7705ACP --: Widely available supply-voltage supervisor with reset generation, suitable replacement for basic reset/monitoring functions.
  • MC34064P-5 --: Low-cost undervoltage sensing reset IC that can substitute for reset supervision in many designs, though package and features differ.
  • TL7705ACD --: Widely used voltage supervisor/reset IC with adjustable threshold and reset output, suitable functional replacement in SOIC-8.
  • MC34064D-5 --: Undervoltage sensing circuit providing reset output, commonly used as a supervisory alternative in 8-pin packages.

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