Integrated Circuit TTL 74LS27/74LS27J TEXAS INSTRUMENT LS
Integrated Circuit TTL 74LS258/74LS258APC FAIRCHILD LS
Integrated Circuit TTL 74LS27/GD74LS27 GENERAL SEMI LS
Quad 2-Input Multiplexer with 3-State Outputs
Ic-ttl- Nand Gate
74LS85
74LS27
