DM5401 Datasheet - National Semiconductor

DM5401, Quad 2-Input NAND Gates with Open-Collector Outputs

DM5401 DM7401 Quad 2-Input NAND Gates with Open-Collector Outputs June 1989 DM5401 DM7401 Quad 2-Input NAND Gates with Open-Collector Outputs Genera.
This device contains four independent gates each of which performs the logic NAND function The open-collector outputs require external pull-up resisto.