PALMTOP COMPUTER AND FLASH MEMORY POWER SUPPLY REGULATORS The MAX718CSE is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX718CSE
- **Package:** 16-pin SOIC (Small Outline Integrated Circuit)
- **Operating Voltage Range:** 4.5V to 5.5V
- **Reset Threshold Voltage:** Adjustable or fixed (specific value depends on variant)
- **Reset Timeout Period:** Typically 200ms (adjustable in some versions)
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)
- **Watchdog Timer:** Yes (programmable timeout)
- **Manual Reset Input:** Yes
- **Power-Fail Comparator:** Yes (for early warning of power failure)
- **Battery Backup Support:** Yes (for CMOS RAM or real-time clock backup)
### **Descriptions:**
The MAX718CSE is a comprehensive μP supervisory circuit designed to monitor power supply voltages, generate reset signals, and provide watchdog timer functionality. It ensures reliable system operation by resetting the microprocessor during power-up, power-down, or brownout conditions.
### **Features:**
1. **Voltage Monitoring:** Monitors +5V supply for out-of-tolerance conditions.
2. **Reset Output:** Active-low or active-high reset signal with adjustable timeout.
3. **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.
4. **Power-Fail Comparator:** Provides early warning of impending power failure.
5. **Battery Backup Switching:** Supports automatic switchover to backup battery for critical components.
6. **Manual Reset Input:** Allows external push-button reset control.
7. **Low Power Consumption:** Optimized for minimal power draw in standby mode.
This information is based solely on the manufacturer's datasheet and technical documentation.
