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MAX690ACPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX690ACPA

Manufacturer: MAXIM, MAX

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX690ACPA MAXIM, MAX 1916 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX690ACPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:

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

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 8-pin PDIP (Plastic Dual In-Line Package)  
- **Reset Threshold Accuracy:** ±1.5%  
- **Reset Timeout Period:** Adjustable or fixed (typically 200ms)  
- **Quiescent Current:** 35μA (typical)  
- **Manual Reset Input:** Active-low (MR)  
- **Watchdog Timer:** 1.6s timeout (typical)  

### **Descriptions:**  
The MAX690ACPA is a low-power μP supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect software hangs and a manual reset input for user-initiated resets.  

### **Features:**  
- **Power Supply Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Active-low reset signal (RESET) for μP initialization.  
- **Watchdog Timer:** Detects system failures if not toggled within a set time.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Manual Reset Capability:** Allows external reset triggering via the MR pin.  
- **Wide Operating Voltage Range:** Supports systems from 1.2V to 5.5V.  
- **No External Components Required:** Minimal external circuitry needed.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

Alternative Part Number

  • ADM690AN --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, direct functional equivalent in a DIP package.
  • DS1232 --: Microprocessor supervisor with reset and watchdog timing, commonly used as a substitute for MAX690-series supervisors.
  • TL7705ACP --: Supply voltage supervisor with reset output, suitable alternative for power-on reset and brownout monitoring applications.
  • ICL690CPA --: Same supervisory IC family offering power-fail detection and reset output, suitable drop-in replacement in most designs.

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