The LSTTL/MSI SN54/74LS42 is a Multipurpose Decoder designed to accept four BCD inputs and provide ten mutually exclusive outputs. The LS42 is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all Motorola TTL families. • Multifunction Capability • Mutually Exclusive Outputs • Demultiplexing Capability • Input Clamp Diodes Limit High Speed Termination Effects