Microprocessor Supervisory Circuits The **MAX693MJE/883B** is a microprocessor (μP) supervisory circuit manufactured by **Maxim Integrated**. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX693MJE/883B
- **Category:** Microprocessor Supervisory Circuit
- **Qualification Level:** MIL-PRF-38535 Class B (883B)
- **Operating Temperature Range:** -55°C to +125°C
- **Supply Voltage Range:** 1.2V to 5.5V
- **Watchdog Timer:** Yes (Programmable)
- **Reset Threshold Accuracy:** ±1.5%
- **Reset Timeout Period:** Adjustable (200ms typical)
- **Package:** Ceramic DIP (Dual In-Line Package)
- **Pin Count:** 8
### **Descriptions:**
- The MAX693MJE/883B is a high-reliability supervisory IC designed for military and aerospace applications.
- It monitors system voltage and provides a reset signal to the μP in case of power failure or brownout conditions.
- Includes a watchdog timer to detect software crashes and reset the system if necessary.
- Qualified to MIL-PRF-38535 standards for harsh environments.
### **Features:**
- **Voltage Monitoring:** Monitors VCC and asserts reset if voltage drops below threshold.
- **Watchdog Timer:** Prevents system lockup by resetting the μP if not toggled within a set time.
- **Manual Reset Input:** Allows external push-button reset control.
- **Low Power Consumption:** Ideal for battery-powered systems.
- **High Accuracy Reset Threshold:** Ensures reliable operation.
- **Radiation-Hardened:** Suitable for space and high-reliability applications.
- **MIL-STD-883 Compliant:** Meets stringent military-grade requirements.
This device is commonly used in mission-critical systems where reliable power monitoring and μP supervision are essential.
