SN74LS540DWRE4
SN74LS540DWRG4
SN74LS540J
SN74LS540N
SN74LS540NE4
SN74LS540NS
SN74LS540NSE4
SN74LS540NSG4
SN74LS540N-SN74ALS540N
SN74LS540NSR
0755-83259964