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MAX705CSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX705CSA

Manufacturer: MAXIM, MAXAM, MAX

Low-Cost, uP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX705CSA MAXIM, MAXAM, MAX 40574 In Stock

Description and Introduction

Low-Cost, uP Supervisory Circuits The MAX705CSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
- **MAXAM** (Note: The correct manufacturer is **Maxim Integrated**, now part of Analog Devices. "MAXAM" may be a typographical error.)

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (e.g., 4.65V, 4.40V, 3.08V, etc.)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)  
- **Package Type:** 8-pin SOIC (Small Outline Integrated Circuit)  

### **Descriptions:**  
- The MAX705CSA monitors system voltage and provides a reset signal to the microprocessor if the voltage drops below a preset threshold.  
- It ensures proper system initialization and prevents data corruption during power-up, power-down, or brownout conditions.  
- Includes a manual reset input for external reset control.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Low Quiescent Current:** Typically 35μA (ideal for battery-powered applications).  
- **Manual Reset Input:** Allows for external system reset.  
- **Power-On Reset (POR) Generator:** Guarantees a valid reset signal at power-up.  
- **Watchdog Timer (Optional in Some Variants):** Monitors software execution (not present in all versions).  

For exact details, refer to the official datasheet from **Maxim Integrated (Analog Devices)**.

Application Scenarios & Design Considerations

Low-Cost, uP Supervisory Circuits

Alternative Part Number

  • ADM705ARZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, direct functional equivalent to the MAX705 in an SOIC package.
  • TL7705ACP --: Widely available supply voltage supervisor with reset output, suitable replacement for basic reset/supervision needs though pinout differs.
  • MC33064P-5 --: Undervoltage sensing circuit providing reset signal, low-cost alternative for supply monitoring applications with different pinout.
  • STWD100NYWY3F --: Watchdog timer and supervisor IC offering similar reset/watchdog functionality, suitable as an alternative with different series naming.

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