SN74LS627N
SN74LS628D
SN74LS628DE4
SN74LS628DG4
SN74LS628DR
SN74LS628DRE4
SN74LS628DRG4
SN74LS628N
SN74LS628NE4
SN74LS628NS
19129491934(手机优先微信同号)