ONE-OF-TEN DECODER The LSTTL/MSI SN54/74LS42 is a Multipurpose Decoder designed to ac-cept 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

7401 Quad 2-input NAND Gates with Open-collector Outputs DM5401 DM7401 Quad 2-Input NAND Gates with Open-Collector Outputs. This device contains four independent gates each of which performs the logic NAND function The open-collector outputs require external pull-up resistors for proper logical operation.