型号SN54LS257BJTI25SN54LS273JTI9SN54LS283JTI25SN54LS322AJTI3SN54LS348JTI14SN54LS38JTI24SN54LS393JTI5SN54LS592JTI25SN54LS86AJTI100SN54S00JTI25SN54S02JTI12SN54S08JTI24SN55107BJTI15SN55183JTI50SN55189AJTI10SN55451BJGTI69SN7437NTI1SN74AC86NSRTI3SN74ACT04NTI155西安福川电子科技有限公司电话：029-88256270传真：029-88257182网址：邮箱：sales@ai地址：西安市高新区锦业路32号锦业时代B3幢12层http:///brand/ml)