新74LS00FPEL 74LS157NSR AZ393M-ATR AZ393AP-E1

全新HD74LS51FPEL HD74LS42FPTR HD74LS393FPE HD74LS38RPEL

贴插LTV-817S-TA/C-HD74HC238FPEL-HD74LS393FPTR-B

贴片直插HD74HC595FPEL，HD74HC74RP-EL，HD74LS393RPEL

SN74LS92NSR 136/164/280/393/628 HD74LS74AFPEL ARPEL FPEL SOP

全新原装正品品质保证

全新74LS640FP-E 74LS393FPEL 74LS393FP-E 74LS374RPEL 74LS374N