SN74HC266D
QUADRUPLE 2-INPUT EXCLUSIVE-NOR GATES WITH OPEN..
SN74HC266N
QUADRUPLE 2-INPUT EXCLUSIVE-NOR GATES WITH OPEN..
SN74HC27
TRIPLE 3-INPUT POSITIVE-NOR GATES
SN74HC273
OCTAL D-TYPE FLIP-FLOPS WITH CLEAR
SN74HC273DBLE
OCTAL D-TYPE FLIP-FLOPS WITH CLEAR