name: 54AS879 function: Dual 4bit Edge-trig D-Flip-flop, Inverted, 3-state package: DIP,24 manufacturer: TI added-by: Long john Silicon +--()--+ 1CLR! | 1 24| VCC 1OC! | 2 23| 1CLK 1D1 | 3 22| 1Q1! 1D2 | 4 21| 1Q2! 1D3 | 5 20| 1Q3! 1D4 | 6 19| 1Q4! 2D1 | 7 18| 2Q1! 2D2 | 8 17| 2Q2! 2D3 | 9 16| 2Q3! 2D4 |10 15| 2Q4! 2OC! |11 14| 2CLK GND |12 13| 2CLR! +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/