Fairchild Semiconductor
Quad 2-Input NAND Schmitt Trigger
ON Semiconductor
Quad 2-Input NAND Gate with Schmitt-Trigger Inputs High−Performance Silicon−Gate CMOS
System Logic Semiconductor
Quad 2-Input NAND Gate with Schmitt-Trigger Inputs High-Performance Silicon-Gate CMOS
Motorola => Freescale
Quad 2-Input NAND Gate with Schmitt-Trigger Inputs
ON Semiconductor
Quad 2-Input NAND Schmitt Trigger
Integral Corp.
QUAD 2-INPUT NAND GATE WITH SCHMITT-TRIGGER INPUTS High-Performance Silicon-Gate CMOS
ON Semiconductor
Quad 2-Input NAND Schmitt Trigger
ON Semiconductor
Quad 2−Input NAND Gatewith Schmitt−Trigger Inputs