SN74AS280N
Texas Instruments
SN74LS280M
Rochester Electronics
MC74F280DR2
MC74F280D
MC74F280N
74AC280SC
SC65895PK280
74AC280SCX
74HC280D/S400118
N74F280BD,623
74F280SC
74F280SCX
MC74F182N
MC10160P
74F280SJ
CD74HCT280E
74LS280FP-E
CD74AC280E
DM74AS280MX
CD74HC280E