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MAX691ACWE+ from MAX,MAXIM - Dallas Semiconductor

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MAX691ACWE+

Manufacturer: MAX, MAXIM

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX691ACWE+,MAX691ACWE MAX, MAXIM 14 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX691ACWE+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated.  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX691ACWE+  
- **Package:** 16-pin Wide SOIC (SO-16)  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Reset Threshold Accuracy:** ±1.5% (typical)  
- **Reset Timeout Period:** Adjustable or fixed (depending on configuration)  
- **Watchdog Timer:** Yes (programmable)  
- **Manual Reset Input:** Yes  
- **Battery Backup Switchover:** Yes (for CMOS RAM)  
- **Low Quiescent Current:** Typically 5μA (battery backup mode)  

### **Descriptions and Features:**  
- The MAX691ACWE+ is designed to monitor power supply voltages in microprocessor-based systems.  
- It provides reset signals to the μP during power-up, power-down, or brownout conditions.  
- Includes a watchdog timer to detect software lockups.  
- Features a battery backup switchover for CMOS RAM to maintain data during power loss.  
- Offers a manual reset input for user-initiated resets.  
- Low power consumption in battery backup mode extends battery life.  
- Suitable for industrial, automotive, and computing applications requiring reliable power monitoring.  

(Note: Always refer to the official datasheet for detailed specifications and application guidelines.)

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

Alternative Part Number

  • ADM691AARWZ --: Pin-compatible microprocessor supervisory circuit with reset and watchdog functions, direct functional equivalent to the MAX691A in a similar SOIC package.
  • LTC691CSW --: Microprocessor supervisory circuit offering reset, watchdog and backup-battery switching, functionally equivalent to the MAX691A family.
  • DS1232LPS --: Microprocessor supervisor with reset and watchdog timing, suitable replacement when battery-backup switching is not strictly required.
  • DS1232LPS-2 --: Microprocessor supervisor with reset and watchdog timing, from a different product family, usable as an alternative with minor circuit adjustment.

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