SN74LS164D
SN74LS164DE4
SN74LS164DG4
SN74LS164DR
SN74LS164DR2
SN74LS164DRE4
SN74LS164DRG4
SN74LS164N
SN74LS164NE4
SN74LS164NS
19129491934(手机优先微信同号)