SN74ALS540-1NSR
SN74ALS540-1NSRE4
SN74ALS540-1NSRG4
SN74ALS540-1NSRSO
SN74ALS540DW
SN74ALS540DWG4
SN74ALS540DWR
SN74ALS540DWRG4
SN74ALS540N
SN74ALS540NE4