54ACT00
National Semiconductor (now Texas Instruments)
Quad 2-Input NAND Gate
Quad 2-Input NAND Gate
Quadruple 2-Input Positive-NAND Gates
QUADRUPLE 2-INPUT POSITIVE-NAND GATES
Quadruple 2-Input Positive-NAND Gates
QUADRUPLE 2-INPUT POSITIVE-NAND GATES