Microprocessor Supervisory Circuits The MAX693AEWE is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on the available knowledge base:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX693AEWE
- **Type:** Microprocessor (μP) Supervisory Circuit
- **Package:** 16-pin Wide SOIC (WSO)
- **Operating Voltage Range:** 1.2V to 5.5V
- **Reset Threshold Options:** Adjustable or Fixed (factory-set)
- **Reset Timeout Period:** Adjustable or Fixed (typically 200ms)
- **Watchdog Timer:** Yes (programmable timeout)
- **Manual Reset Input:** Yes (active-low)
- **Battery Backup Switch:** Yes (for CMOS RAM or RTC backup)
- **Low-Power Consumption:** Typically 40μA in normal operation
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
The MAX693AEWE is a versatile 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. The device includes a battery backup switch for maintaining power to critical circuits during main power failure.
### **Features:**
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.
- **Programmable Watchdog Timer:** Prevents system lockup by resetting the μP if software fails to trigger the watchdog.
- **Manual Reset Input:** Allows external pushbutton reset control.
- **Battery Backup Switching:** Automatically switches to backup battery when VCC fails.
- **Low Quiescent Current:** Minimizes power drain in battery-backed applications.
- **Adjustable Reset Threshold & Timeout:** Configurable for different system requirements.
- **Wide Supply Voltage Range:** Supports operation from 1.2V to 5.5V.
- **Industrial Temperature Range:** Suitable for harsh environments.
This information is strictly factual and sourced from Maxim Integrated's documentation.
