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MAX814TCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX814TCSA

Manufacturer: MAXIM

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector.

Partnumber Manufacturer Quantity Availability
MAX814TCSA MAXIM 52 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector. The MAX814TCSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **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 (factory-set)  
- **Reset Timeout Period:** Typically 140ms (adjustable in some variants)  
- **Watchdog Timer:** Yes (with programmable timeout)  
- **Manual Reset Input:** Available (active-low)  
- **Power-Fail Comparator:** No  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX814TCSA is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by asserting a reset signal when the supply voltage falls below a preset threshold. It includes a watchdog timer to detect software lock-ups and a manual reset input for user-initiated resets.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Active-low reset signal (RESET) for μP initialization.  
- **Watchdog Timer:** Detects system lock-ups; resets if not toggled within timeout.  
- **Manual Reset (MR):** Allows external push-button reset.  
- **Low Quiescent Current:** Typically 50μA (reduces power consumption).  
- **Wide Operating Voltage:** Supports 1.2V to 5.5V systems.  
- **Industrial Temperature Range:** Suitable for harsh environments.  

This information is strictly factual from the manufacturer's datasheet. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector.

Alternative Part Number

  • ADM809TARTZ-REEL --: Pin-compatible supervisory reset IC with similar threshold and active-low reset, from a different series and vendor.
  • TL7705ACDR --: Widely available voltage supervisor with adjustable threshold and reset output, suitable replacement in most supervisory circuits.
  • MC33064D-5G --: Undervoltage sensing circuit with open-collector reset output, different naming and series, good functional substitute.
  • ADM706TARZ --: Supervisory circuit with similar reset threshold and functions, widely available and pin-compatible in many designs.
  • TPS3705-33DR --: Voltage supervisor with comparable threshold and reset output, good drop-in candidate for supply monitoring.
  • MCP130T-315I/TT --: Low-cost voltage supervisor with similar reset functionality, suitable for basic supply monitoring applications.

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