Microprocessor Supervisory Circuit The MAX791ESE+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Series:** MAX791
- **Package:** 16-SOIC (0.154", 3.90mm Width)
- **Operating Temperature Range:** -40°C to +85°C
- **Supply Voltage (VCC):** 1.2V to 5.5V
- **Watchdog Timer:** Yes
- **Reset Threshold Voltage:** Adjustable or fixed (depending on variant)
- **Reset Timeout Period:** Adjustable or fixed (typically 200ms)
- **Manual Reset Input:** Yes
- **Battery Backup Switchover:** Yes
- **Battery Backup Voltage Range:** 1V to 5.5V
- **Power-Fail Comparator:** Yes
### **Description:**
The MAX791ESE+ is a comprehensive μP supervisory circuit designed to monitor power supply, battery backup, and watchdog functions in microprocessor-based systems. It ensures reliable system operation by generating a reset signal during power-up, power-down, or brownout conditions. It also includes a watchdog timer to detect software crashes and a manual reset input for user-initiated resets.
### **Features:**
- **Power Supply Monitoring:** Monitors VCC for undervoltage conditions.
- **Battery Backup:** Automatically switches to backup battery when VCC fails.
- **Watchdog Timer:** Resets the system if the watchdog is not toggled within a set time.
- **Manual Reset Input:** Allows for external reset triggering.
- **Power-Fail Comparator:** Provides early warning of power failure.
- **Low Quiescent Current:** Minimizes power consumption in backup mode.
- **Wide Operating Voltage Range:** Supports systems from 1.2V to 5.5V.
- **Industrial Temperature Range:** Operates from -40°C to +85°C.
This information is strictly factual and sourced from the manufacturer's datasheet.
