View ds1812 datasheet:

DS1812 5V EconoReset with Active High Push-Pull Output www.dalsemi.com FEATURES PIN ASSIGNMENT Automatically restarts a microprocessor after 3 power failure Maintains reset for 150 ms after VCC returns to an in-tolerance condition Reduces need for discrete components Precision temperature-compensated voltage 1 2 reference and voltage sensor SOT-23 PACKAGE See Mech. Drawing Low-cost TO-92, or space saving surface mount SOT-23 packages available 1 2 3 Push-pull active high output Operating temperature -40°C to +85°C 1 2 3 TO-92 PACKAGE See Mech. Drawings PIN DESCRIPTION TO-92 1 RST Active High Reset Output 2 VCC Power Supply 3 GND Ground SOT-23 1 RST Active High Reset Output 2 VCC Power Supply 3 GND Ground DESCRIPTION The DS1812 EconoReset uses a pre