Low-Cost, µP Supervisory Circuits The MAX813LCPA+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX813LCPA+
- **Type:** Microprocessor Supervisor
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)
- **Operating Voltage Range:** 1.2V to 5.5V
- **Reset Threshold Options:** Adjustable or Fixed (4.65V, 4.40V, 4.00V, 3.08V, 2.93V, 2.63V)
- **Reset Timeout Period:** 140ms (min), 280ms (typ)
- **Watchdog Timer Timeout:** 1.6s (adjustable via external capacitor)
- **Manual Reset Input:** Active-low (MR)
- **Operating Temperature Range:** 0°C to +70°C
- **Power-On Reset (POR) Circuitry:** Yes
- **Low Quiescent Current:** 35μA (typ)
### **Descriptions:**
The MAX813LCPA+ is a supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect software lockups and a manual reset input for user-initiated resets.
### **Features:**
- **Power Supply Monitoring:** Monitors VCC and asserts reset if voltage drops below threshold.
- **Watchdog Timer:** Detects system lockups; resets if not toggled within timeout period.
- **Manual Reset Input:** Allows external push-button reset.
- **Adjustable Watchdog Timeout:** Configurable via external capacitor.
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reliable reset assertion.
- **Low Power Consumption:** Suitable for battery-powered applications.
- **Space-Saving 8-Pin Package:** Available in PDIP for easy prototyping.
This information is based solely on the manufacturer's datasheet and technical documentation.
