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MAX708TCUA-TG from MAX,MAXIM - Dallas Semiconductor

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MAX708TCUA-TG

Manufacturer: MAX, ON

UP Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX708TCUA-TG,MAX708TCUATG MAX, ON 138 In Stock

Description and Introduction

UP Supervisory Circuits The MAX708TCUA-TG is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual details about its specifications, descriptions, and features:

### **Manufacturer:**  
- **MAX** (Maxim Integrated, now part of Analog Devices)  

### **Specifications:**  
- **Package:** 8-pin μMAX (TSSOP)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (1.575V, 2.32V, 2.93V, 4.38V, etc.)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Manual Reset Input:** Active-low (MR)  
- **Power-On Reset (POR) Circuitry:** Ensures proper reset during power-up  
- **Watchdog Timer:** 1.6s timeout (adjustable via external capacitor)  

### **Descriptions:**  
- The MAX708TCUA-TG is a low-power μP supervisory circuit designed to monitor power supply voltages in digital systems.  
- It provides a reset signal to the microprocessor if the supply voltage falls below a preset threshold.  
- Includes a watchdog timer to detect software failures and a manual reset input for external control.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Active-low RESET signal for μP control.  
- **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Low Quiescent Current:** Typically 35μA (ideal for battery-powered applications).  
- **Space-Saving Package:** 8-pin μMAX (TSSOP) for compact designs.  

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

Application Scenarios & Design Considerations

UP Supervisory Circuits

Alternative Part Number

  • ADM708TARZ --: Pin-compatible microprocessor supervisory circuit with the same active-low reset and watchdog functions, widely available and a direct functional drop-in.
  • TL7705ACP --: Classic 5V supply voltage supervisor with reset output, similar threshold and timing behavior, suitable for the same supervisory role.
  • MCP130T-450HI/TO --: Low-cost 5V supervisor with active-low reset output and similar threshold, usable as a functional substitute in most reset circuits.
  • TPS3808G01DBVR --: Adjustable supervisory circuit with similar reset threshold and open-drain output, widely available and pin-compatible in function.
  • CAT811TTBI-GT3 --: Low-cost voltage supervisor with comparable threshold and reset functionality, suitable drop-in replacement in many designs.

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