74248 BCD to 7-segment decoder/common-cathode LED driver with ripple blank input and output. +----------+ A1 |1 +--+ 16| VCC A2 |2 15| YF /LT |3 14| YG /RBO |4 74 13| YA /RBI |5 248 12| YB A3 |6 11| YC A0 |7 10| YD GND |8 9| YE +----------+ [This information is part of the GIICM]