SN74LS629N
SN74LS629NE4
SN74LS629NS
SN74LS629NSE4
SN74LS629NSG4
SN74LS629NSR
SN74LS629NSRE4
SN74LS629NSRG4
SN74LS63N
SN74LS640-1DW
19129491934(手机优先微信同号)