74HCT280DB112
Rochester Electronics
CD74AC280M96
CD74HC280M96
CD74ACT280M96
SN74LS280NSR
SN74AS286N
SN74AS280NSR
SN74AS286D
74ACT11286D
I74F280BD,602
N74F280BN,602
QS74FCT521BTSO
QS74FCT280TQ
QS74FCT280ATZ
SNJ54F280BW
AY-5-8146T-005
CD54ACT280F/3A
CD40101BD
9348FM
COM5016-5CD