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MAX808LCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX808LCSA

Manufacturer: MAXIM

Supervisory circuit with +-1.5% reset accuracy. Reset threshold(typ) 4.675V. CMOS RAM write protection..

Partnumber Manufacturer Quantity Availability
MAX808LCSA MAXIM 51 In Stock

Description and Introduction

Supervisory circuit with +-1.5% reset accuracy. Reset threshold(typ) 4.675V. CMOS RAM write protection.. The MAX808LCSA 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 (now Analog Devices)  
- **Part Number:** MAX808LCSA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Type:** Microprocessor Voltage Monitor/Supervisor  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** Typically 140ms (min)  
- **Quiescent Current:** 5μA (typical)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial)  
- **Output Type:** Active-low, push-pull RESET  

### **Descriptions:**  
The MAX808LCSA monitors system voltage levels and provides a reset signal to the microprocessor when the supply voltage falls below a preset threshold. It ensures proper system initialization during power-up, power-down, or brownout conditions.  

### **Features:**  
- Low quiescent current (5μA) for power efficiency  
- Precision voltage monitoring with factory-set or adjustable thresholds  
- Guaranteed reset output valid down to VCC = 1V  
- No external components required for fixed threshold versions  
- Push-pull RESET output (active-low)  
- Immune to short VCC transients  
- Small 8-pin SOIC package for space-constrained applications  

This device is commonly used in embedded systems, industrial controls, and battery-powered applications where reliable voltage monitoring is critical.

Application Scenarios & Design Considerations

Supervisory circuit with +-1.5% reset accuracy. Reset threshold(typ) 4.675V. CMOS RAM write protection..

Alternative Part Number

  • ADM708ARZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, widely available and functionally equivalent to the MAX808L.
  • DS1232LP --: Microprocessor supervisor with reset and watchdog in the same vendor family, offering comparable supervisory functions for 5V systems.
  • TL7705ACP --: Low-cost 5V supply voltage supervisor with reset output, suitable as a functional substitute where watchdog timing is not critical.
  • IMP708CPA --: Direct functional equivalent of the MAX708/MAX808 supervisor family with the same reset threshold and pinout, offered by a second-source vendor.

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