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MAX708CSA

Manufacturer: MAX, MAXIM, MAXIM

Low-Cost, uP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX708CSA MAX, MAXIM, MAXIM 16342 In Stock

Description and Introduction

Low-Cost, uP Supervisory Circuits The MAX708CSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor (μP) Supervisory Circuit  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (1.6V, 2.5V, 3.0V, 3.3V, 5.0V)  
- **Reset Timeout Period:** 140ms (min), 200ms (typ), 280ms (max)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial)  
- **Manual Reset Input:** Active-low (MR)  
- **Power-Fail Comparator:** Yes (for early warning of power failure)  
- **Watchdog Timer:** 1.6s (typical)  

### **Descriptions:**  
The MAX708CSA monitors power supply voltages in microprocessor-based systems and ensures proper operation during power-up, power-down, and brownout conditions. It provides a reset signal to the μP when the supply voltage drops below a preset threshold. The device includes a watchdog timer, manual reset input, and power-fail comparator for enhanced system reliability.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Adjustable or Fixed Threshold:** Supports multiple voltage levels.  
- **Power-Fail Comparator:** Warns of impending power loss.  
- **Watchdog Timer:** Detects software crashes.  
- **Manual Reset Input (MR):** Allows user-initiated reset.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures proper reset even at low voltages.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to Maxim Integrated's official documentation.

Application Scenarios & Design Considerations

Low-Cost, uP Supervisory Circuits

Alternative Part Number

  • ADM708AN --: Pin-compatible microprocessor supervisory circuit with active-low reset and manual reset, functionally equivalent to the MAX708 in an 8-pin DIP/SO package.
  • TL7705ACP --: Widely available supply-voltage supervisor with reset output and manual reset input, suitable drop-in replacement for MAX708 supervisory functions.
  • MC34064P --: Low-cost undervoltage sensing circuit providing reset output, commonly used as an alternative for simple reset supervisor applications.
  • MC34064P-5 --: Undervoltage sensing circuit providing reset output for 5V systems, a common and cost-effective alternative for supervisory reset duties.

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