7447 BCD to 7-segment decoder with ripple blank input and output. +----------+ A1 |1 +--+ 16| VCC A2 |2 15| /YF /LT |3 14| /YG /RBO |4 13| /YA /RBI |5 7447 12| /YB A3 |6 11| /YC A0 |7 10| /YD GND |8 9| /YE +----------+ [This information is part of the GIICM]