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MAX815LCSA from MAXIM,MAXIM,MAXIM - Dallas Semiconductor

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MAX815LCSA

Manufacturer: MAXIM,MAXIM, MAX

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

Partnumber Manufacturer Quantity Availability
MAX815LCSA MAXIM,MAXIM, MAX 25107 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit. The MAX815LCSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
- **MAX** (Maxim Integrated)  

### **Specifications:**  
- **Part Number:** MAX815LCSA  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5% (for 5V operation)  
- **Reset Timeout Period:** Adjustable (typically 140ms for fixed delay)  
- **Manual Reset Input:** Active-low (MR)  
- **Power-On Reset (POR) Detection:** Yes  
- **Watchdog Timer:** Yes (1.6s typical timeout)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)  
- **Low Quiescent Current:** Typically 50μA  

### **Descriptions:**  
- The MAX815LCSA monitors microprocessor power supply voltages and provides a reset signal during power-up, power-down, and brownout conditions.  
- It includes a watchdog timer to detect software lockups and a manual reset input for external system reset control.  
- The device ensures reliable system operation by holding the microprocessor in reset until the supply voltage stabilizes.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures accurate reset thresholds.  
- **Watchdog Timer:** Prevents system lockups by requiring periodic toggling.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Small Form Factor:** 8-pin SOIC package for space-constrained designs.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  

This information is based solely on the manufacturer's datasheet and product specifications.

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

Alternative Part Number

  • ADM706TARZ --: Supervisory circuit with similar reset and watchdog functions in an 8-pin SOIC package; widely available and pin-function compatible for most MAX815L applications.
  • TPS3705-33DR --: Voltage supervisor with reset and watchdog timing in SOIC-8, offering comparable monitoring behavior and a different naming series for easy distinction.
  • CAT823STDI-GT3 --: Low-cost microprocessor supervisory circuit with reset output and watchdog in SOT-23/TSOP, suitable as a functional substitute where package adaptation is acceptable.
  • ADM706SARZ --: Supervisory circuit with similar reset and watchdog functions, widely available and pin-compatible in many designs.
  • MC33064D-5G --: Undervoltage sensing circuit offering similar reset functionality at lower cost, suitable for basic supervisory needs.
  • ADM706RARZ --: Supervisory circuit with reset and watchdog functions in an 8-pin SOIC package, functionally similar to the MAX815 and widely available.

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