The MAX809 and MAX810 are cost–effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required.

Features
• Precision VCC Monitor for 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies
• Precision Monitoring Voltages from 1.6 V to 4.9 V Available in 100 mV Steps
• 140 msec Guaranteed Minimum RESET Output Duration
• RESET Output Guaranteed to VCC = 1.0 V
• Low Supply Current
• VCC Transient Immunity
• Small SOT–23 Package
• No External Components
• Wide Operating Temperature: –40°C to 105°C

Typical Applications
• Computers
• Embedded Systems
• Battery Powered Equipment
• Critical µP Power Supply Monitoring