MAX810

MAX809, MAX810 3-Pin Microprocessor Reset Monitors 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. The reset output is driven active within 20 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 140msec after VCC rises above the reset threshold. The MAX810 has an active–high RESET output while the MAX809 has an active–low RESET output. The output of the MAX809 is guaranteed valid down to VCC = 1V. Both devices are available in a SOT–23 package. The MAX809/810 are optimized to reject fast transient glitches on the VCC line. Low supply current of 17µA (VCC = 3.3V) makes these devices suitable for battery powered applications. http://onsemi.com SOT–23 (TO–236) CASE 318 Precision VCC Monitor for 3.0V, 3.3V, and 5.0V Supplies 140msec Guaranteed Minimum RESET, RESET Output Duration RESET Output Guaranteed to VCC = 1.0V (MAX809) Low 17µA Supply Current VCC Transient Immunity Small SOT–23 Package No External Components Wide Operating Temperature: –40°C to 85°C Features PIN CONFIGURATION (Top View) GND 1 3 RESET (RESET)** VCC 2 SOT–23* NOTE: *SOT–23 is equivalent to JEDEC (TO–236) ** RESET is for MAX809 ** RESET is for MAX810 Typical Applications Computers Embedded Systems Battery Powered Equipment Critical µP Power Supply Monitoring TYPIC...