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MAX815LCPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX815LCPA

Manufacturer: 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
MAX815LCPA MAXIM, MAX 100 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 MAX815LCPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information:  

### **Manufacturer:** MAXIM (now Analog Devices)  
### **Part Number:** MAX815LCPA  
### **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  

### **Descriptions:**  
- The MAX815LCPA is a precision voltage monitor designed to monitor power supplies in microprocessor (μP) and digital systems.  
- It provides reset signals to ensure proper system operation during power-up, power-down, or brownout conditions.  

### **Key Features:**  
1. **Voltage Monitoring:**  
   - Monitors +5V, +3.3V, or +3V power supplies.  
   - Adjustable reset threshold options available in some variants.  

2. **Reset Output:**  
   - Active-low RESET output asserts when VCC falls below the threshold.  
   - Reset remains asserted for a minimum of 140ms after VCC rises above the threshold.  

3. **Manual Reset Input:**  
   - Includes a manual reset (MR) input for external system reset control.  

4. **Low Power Consumption:**  
   - Typically consumes 50μA supply current.  

5. **Wide Operating Voltage Range:**  
   - Operates from 1V to 5.5V.  

6. **Temperature Range:**  
   - Commercial temperature range: 0°C to +70°C.  

7. **Additional Functions:**  
   - Power-fail comparator for early warning of power loss (in some variants).  

### **Applications:**  
- Microprocessor and microcontroller systems.  
- Embedded controllers.  
- Industrial and automotive systems.  
- Critical power-supply monitoring.  

For exact specifications, refer to the official datasheet from Analog Devices (formerly Maxim Integrated).

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

  • ADM707AN --: Pin-compatible microprocessor supervisor with reset and watchdog functions, widely available and functionally similar to the MAX815L.
  • TL7705ACP --: Classic 5V supply voltage supervisor with reset output, a common drop-in style replacement for MAX815 supervisor applications.
  • MC34064P-5 --: Low-cost 5V undervoltage sensing circuit with reset output, suitable for similar power-on reset and monitoring roles.
  • ADM707ANZ --: Supervisory circuit with reset and watchdog functions in a DIP-8 package, functionally similar to the MAX815 and pin-compatible in most designs.
  • MC33064P-5 --: Undervoltage sensing circuit in a DIP package providing reset functionality, suitable as a lower-cost alternative for supply monitoring.

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