7411013 Dual 4-input NAND gates with schmitt-trigger inputs and buffered output. 0.8V typical input hysteresis at VCC=+5V. +----------+ +-------------------+ ____ 1B |1 +--+ 14| | A | B | C | D |/Y | /Y = ABCD 1A |2 13| 1C |---+---+---+---+---| /1Y |3 7411 12| 1D | 0 | X | X | X | 1 | GND |4 013 11| VCC | 1 | 0 | X | X | 1 | /2Y |5 10| 2A | 1 | 1 | 0 | X | 1 | 2D |6 9| 2B | 1 | 1 | 1 | 0 | 1 | 2C |7 8| | 1 | 1 | 1 | 1 | 0 | +----------+ +-------------------+ [This information is part of the GIICM]