DS1227

www.DataSheet4U.com DS1227 DS1227 KickStarter Chip FEATURES Provides PIN ASSIGNMENT VCCO2 VCCO3 VCCO1 PWRON VDCO 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCCO4 MODE4 SENSE INT/ACK OSCEXT BOOST ON1 ON4 RXIN RXOUT step-up regulation and microenergy management for battery-operated systems DC out for system power Converts +3V to +6V DC input power source to +5V “Kickstarts” system power upon detection of external stimuli: Clock/calendar alarm Sensor trip; such as from a photo diode Incoming activity to a serial port Any low-level signal transition VDCI GND ON/OFF3 OFF1 ON2/OFF2 Shuts down microcontroller power under software control when operation complete powering of system functions Provides 3 auxiliary power outputs for independent Allows design of “power on demand” systems Insures maximum life of main power source Ideally suited for DS5000-based systems Available in 20-pin DIP or SOIC packages Operating temperature range of –40°C to +85°C 20-Pin DIP (300 Mil) See Mech. Drawing - Sect. 16, Pg. 1 VCCO2 VCCO3 VCCO1 PWRON VDCO VDCI GND ON/OFF3 OFF1 ON2/OFF2 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCCO4 MODE4 SENSE INT/ACK OSCEXT BOOST ON1 ON4 RXIN RXOUT 20-Pin SOIC (300 Mil) See Mech. Drawing - Sect. 16, Pg. 6 ORDERING INFORMATION DS1227: DS1227S: 20-Pin DIP 20-Pin SOIC DESCRIPTION The DS1227 Kickstarter is a unique CMOS circuit which combines power conversion and microenergy management functions for battery operated sys...