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MAX805TCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX805TCSA

Manufacturer: MAXIM

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

Partnumber Manufacturer Quantity Availability
MAX805TCSA MAXIM 3400 In Stock

Description and Introduction

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV The MAX805TCSA 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 (Analog Devices)  
- **Part Number:** MAX805TCSA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (e.g., 2.63V, 3.08V, 4.38V, etc.)  
- **Reset Timeout Period:** Typically 140ms (adjustable with external capacitor)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** Typically 20µA (low power consumption)  

### **Descriptions:**
- The MAX805TCSA is a voltage monitor and reset circuit designed to ensure proper μP or microcontroller operation during power-up, power-down, or brownout conditions.  
- It generates a reset signal when the supply voltage drops below a preset threshold, holding the reset active until the voltage stabilizes.  
- Suitable for battery-powered and low-voltage systems due to its wide operating range.  

### **Features:**
- **Manual Reset Input:** Allows external pushbutton reset control.  
- **Low Power Consumption:** Ideal for portable and battery-operated devices.  
- **Guaranteed Reset Output Valid Down to VCC = 1V:** Ensures reliable operation even at low voltages.  
- **Adjustable or Fixed Threshold Options:** Supports various voltage monitoring needs.  
- **Small Form Factor:** 8-pin SOIC package for space-constrained applications.  

For exact threshold options and detailed electrical characteristics, refer to the official datasheet from Maxim Integrated (Analog Devices).

Application Scenarios & Design Considerations

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

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