74256 2-of-8 addressable latch with reset and enable. +----------+ +-----------------------------+ S0 |1 +--+ 16| VCC |/EN|/RST| Function | S1 |2 15| /RST |---+----+--------------------| 1D |3 14| /EN | 0 | 0 | 2-of-8 demultiplex | 1Q0 |4 74 13| 2D | 0 | 1 | addressable latch | 1Q1 |5 256 12| 2Q3 | 1 | 0 | reset | 1Q2 |6 11| 2Q2 | 1 | 1 | hold | 1Q3 |7 10| 2Q1 +-----------------------------+ GND |8 9| 2Q0 +----------+ [This information is part of the GIICM]