SN74HCT245PWRSN74HCT74DRSN74HCT32DRSN74LS02N¥2800去看看RF高频器件代理商发布了SN74HCT245PWR SN74HCT32DR SN74HCT74DR SN74LS00N SN74LS02N询价SN65HVD1781DMC100EL33DR2HD74LS02FPEL¥2500去看看AMSic发布了ACE701127AM+ HD74LS02FPEL MC100EL33DR2 SN65HVD1781D请询价询价HD74LS02RPELSN65HVD1781PMC100EL34DR2¥2500去看看AMSic发布了ACE93C46FM+T HD74LS02RPEL MC100EL34DR2 SN65HVD1781P请询价