74194 4-bit bidirectional universal shift register with asynchronous reset and with separate shift left and shift right serial inputs. +----------+ /RST |1 +--+ 16| VCC D |2 15| Q3 P3 |3 14| Q2 P2 |4 74 13| Q1 P1 |5 194 12| Q0 P0 |6 11| CLK L |7 10| S1 GND |8 9| S0 +----------+ [This information is part of the GIICM]