Before revision: ULN2003A pinout Internal functional diagram The ULN2003A is an array of seven NPN Darlington transistors capable of 500 mA, 50 V output.
After revision: ULN2003A pinout ULN2003A pinout and functional diagram The ULN2003A is an array of seven NPN Darlington transistors capable of 500 mA, 50 V output.