74348 8-to-3 line 3-state inverting priority encoder with cascade inputs. +----------+ /A4 |1 +--+ 16| VCC /A5 |2 15| /EO /A6 |3 14| /GS /A7 |4 74 13| /A3 /EI |5 348 12| /A2 Y2 |6 11| /A1 Y1 |7 10| /A0 GND |8 9| Y0 +----------+ [This information is part of the GIICM]