High-Accuracy / Low-Dropout Linear Regulators The MAX688ESA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX688ESA
- **Package:** 8-SOIC (Small Outline Integrated Circuit)
- **Operating Voltage Range:** 1.2V to 5.5V
- **Reset Threshold Options:** Adjustable or fixed (1.575V, 2.32V, 2.93V, 3.08V, 4.38V, 4.63V)
- **Reset Timeout Period:** 140ms (min), 280ms (typ)
- **Operating Temperature Range:** -40°C to +85°C
- **Quiescent Current:** 40μA (typ)
- **Manual Reset Input:** Yes (active-low)
- **Watchdog Timer:** Yes (1.6s timeout)
### **Descriptions:**
The MAX688ESA is a low-power microprocessor supervisory circuit designed to monitor system voltages and provide a reset signal to the μP in case of power failure or brownout conditions. It includes an adjustable or factory-set reset threshold, a watchdog timer, and a manual reset input.
### **Features:**
- **Voltage Monitoring:** Ensures proper μP operation by monitoring power supply voltages.
- **Adjustable or Fixed Reset Threshold:** Supports multiple preset or user-defined voltage levels.
- **Watchdog Timer:** Detects software lockups and triggers a reset if not toggled within the timeout period.
- **Manual Reset Input:** Allows external push-button reset functionality.
- **Low Power Consumption:** Operates with minimal current draw (40μA typical).
- **Wide Operating Voltage Range:** Compatible with 1.2V to 5.5V systems.
- **Industrial Temperature Range:** Suitable for harsh environments (-40°C to +85°C).
This information is based solely on the manufacturer's datasheet and technical documentation.
