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MAX819LCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX819LCSA

Manufacturer: MAXIM

+5V Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX819LCSA MAXIM 98 In Stock

Description and Introduction

+5V Microprocessor Supervisory Circuits The MAX819LCSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX819LCSA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Supply 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), 280ms (typ)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)  
- **Quiescent Current:** 5μA (typ)  

### **Descriptions:**
- The MAX819LCSA monitors system voltage levels and provides a reset signal to the microprocessor when the voltage falls below a preset threshold.  
- It ensures reliable system operation by preventing erratic behavior during power-up, power-down, or brownout conditions.  
- Available in fixed or adjustable threshold versions for flexibility in different applications.  

### **Features:**
- **Low Power Consumption:** 5μA typical supply current.  
- **Manual Reset Input:** Allows for external reset control.  
- **Power-On Reset (POR):** Guarantees a valid reset signal at power-up.  
- **Watchdog Timer (Optional):** Some variants include a watchdog timer for system monitoring.  
- **Debounced Manual Reset Input:** Ensures clean reset signals.  
- **Space-Saving Package:** 8-pin SOIC for compact designs.  

The MAX819LCSA is commonly used in embedded systems, industrial controls, and battery-powered devices where reliable voltage monitoring is critical.

Application Scenarios & Design Considerations

+5V Microprocessor Supervisory Circuits

Alternative Part Number

  • ADM706RARZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, widely available and a common drop-in replacement for MAX819-series supervisors.
  • TPS3705-33DR --: Supervisory circuit with similar reset threshold and watchdog capability, offered by a major supplier with good availability.
  • MCP130-450HI/TO --: Simple voltage supervisor with active-low reset, suitable for similar monitoring roles where full feature parity is not required.
  • ADM8691ARZ --: Supervisory circuit with similar reset and watchdog functions, widely available and pin-compatible in many designs.
  • DS1232LPS --: Microprocessor supervisor with reset and watchdog, functionally comparable and from the same manufacturer family.
  • TL7705ACP --: Voltage supervisor IC offering reset generation, suitable as a lower-cost functional substitute.

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