name: ICM7217 function: 4 Digit (LED) Presetable Up/Down Counter package: 28 Pin DIP,28 manufacturer: Maxim added-by: Revak Revak +--()--+ CARRY/BORROW | 1 28| D1 ZERO | 2 27| D2 EQUAL | 3 26| D3 BCD I/O 8'S | 4 25| D4 BCD I/O 4'S | 5 24| V+ BCD I/O 2'S | 6 23| DISPLAY CONT BCD I/O 1'S | 7 22| SEG G COUNT INPUT | 8 21| SEG B STORE | 9 20| GROUND UP/DOWN |10 19| SEG E LOAD REGISTER/OFF |11 18| SEG F LOAD COUNTER I/O OFF |12 17| SEG D SCAN |13 16| SEG A RESET |14 15| SEG C +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/