74155 Dual 2/4 Demultiplexer

From the shop's description

74155 Dual 2/4 Demultiplexer Features Dual 2 to 4-Line Decoder Input Clamping Diodes for Inputs Strobe Line Provided for Cascading High Fan Out, Low Impedance, Totem Pole Outputs Superseded, Not Recommended for New Designs Part Summary Manufacturer Various Manufacturer’s Part Number 74155 Manufacturer’s Web Site – Futurlec Part Number 74155 Department Integrated Circuits Category 74 Series RoHS Compliant – Package Type 16 Pin DIP Technical Data