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MAX708SCUA from MAX,MAXIM - Dallas Semiconductor

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MAX708SCUA

Manufacturer: MAX, MAXIM, MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX708SCUA MAX, MAXIM, MAXIM 712 In Stock

Description and Introduction

+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits The MAX708SCUA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX708SCUA  
- **Package:** 8-pin μMAX (MSOP)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (1.6V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V, 4.63V)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 40μA (typ)  

### **Descriptions:**
The MAX708SCUA monitors system voltage and provides a reset signal to the microprocessor when the supply voltage drops below a preset threshold. It ensures proper system initialization during power-up, power-down, or brownout conditions.  

### **Features:**
1. **Manual Reset Input:** Allows for external pushbutton reset control.  
2. **Power-On Reset (POR):** Guarantees a reset pulse upon power-up.  
3. **Watchdog Timer:** Monitors microprocessor activity; resets if the watchdog is not toggled within 1.6s (typ).  
4. **Low Quiescent Current:** Suitable for battery-powered applications.  
5. **Dual Reset Outputs:** Active-low (RESET) and active-high (RESET) outputs.  
6. **Adjustable or Fixed Threshold:** Supports multiple voltage monitoring levels.  

This device is commonly used in embedded systems, industrial controls, and automotive applications requiring reliable power supervision.  

(Note: Always refer to the official datasheet for detailed specifications and application guidelines.)

Application Scenarios & Design Considerations

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

Alternative Part Number

  • ADM708SARZ --: Pin-compatible supervisory IC with similar reset threshold and functions, widely available and directly interchangeable in most designs.
  • TL7705ACP --: Classic 5V supply supervisor with reset output, functionally similar and easy to source, though pinout differs so layout change is needed.
  • MC33064P-5 --: Undervoltage sensing circuit with 5V threshold, suitable as a functional substitute where a simple reset supervisor is acceptable.
  • TL7705ACD --: Widely available 5V supply supervisor with reset output in SOIC-8, similar reset threshold and timing, good drop-in for many designs.
  • MC33064D-5G --: 5V undervoltage sensing reset IC in SOIC-8, simple and cost-effective alternative for basic reset supervision needs.

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