SN74LS641N
SN74LS641NE4
SN74LS641NS
SN74LS641NSE4
SN74LS641NSG4
SN74LS641NSR
SN74LS641NSRE4
SN74LS641NSRG4
SN74LS642-1DW
SN74LS642-1DWE4
0755-23607487