View ds1810 datasheet:

DS1810 5V EconoReset with 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 Low-cost TO-92 or space saving surface mount SOT-23 packages available 1 2 3 Push-Pull output for low current operation Operating temperature -40°C to +85°C 1 2 3 TO-92 PACKAGE See Mech. Drawings Section PIN DESCRIPTION TO-92 1 RST Active Low Reset Output 2 VCC Power Supply 3 GND Ground SOT-23 1 RST Active Low Reset Output 2 VCC Power Supply 3 GND Ground DESCRIPTION The DS1810 EconoReset uses a precision temper