4089 4-bit synchronous binary rate multiplier. +----------+ Q15 |1 +--+ 16| VCC D2 |2 15| D1 D3 |3 14| D0 SET |4 13| RST /Q |5 4089 12| CASC Q |6 11| CIN COUT |7 10| STB GND |8 9| CLK +----------+ [This information is part of the GIICM]