Microprocessor Supervisory Circuits The MAX690AMJA is a microprocessor supervisory circuit manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX690AMJA
- **Package:** 8-Pin CERDIP
- **Operating Voltage Range:** 1.2V to 5.5V
- **Reset Threshold Voltage:** Adjustable or fixed (depending on variant)
- **Reset Timeout Period:** Typically 200ms
- **Operating Temperature Range:** -55°C to +125°C (Military grade)
- **Quiescent Current:** Typically 12µA
- **Watchdog Timer:** Yes (1.6s nominal timeout)
- **Manual Reset Input:** Yes
### **Descriptions:**
The MAX690AMJA is a low-power microprocessor supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal if the supply voltage drops below a specified threshold. It includes a watchdog timer to detect software lockups and a manual reset input for user-initiated resets.
### **Features:**
- **Voltage Monitoring:** Monitors VCC for out-of-tolerance conditions.
- **Reset Output:** Active-low reset signal during power-up, power-down, or brownout conditions.
- **Watchdog Timer:** Requires periodic toggling to prevent system reset.
- **Low Power Consumption:** Ideal for battery-powered applications.
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.
- **Manual Reset Capability:** Allows external pushbutton reset.
- **High Reliability:** Military-grade temperature range (-55°C to +125°C).
This information is based solely on the manufacturer's datasheet and specifications.
