Fairchild Semiconductor
Quad 2-Input Exclusive-OR Gate
Renesas Electronics
4-Bit Binary Full Adders(with Fast Carry)
ON Semiconductor
Quad 2-Input Exclusive OR Gate
Renesas Electronics
4-bit Magnitude Comparator
System Logic Semiconductor
Quad 2-Input Exclusive OR Gate
Motorola => Freescale
4-BIT MAGNITUDE COMPARATOR
Hitachi -> Renesas Electronics
Quadruple 2-input Positive NAND Gates