全新HD74LS51FPEL HD74LS42FPTR HD74LS393FPE HD74LS38RPEL

贴片直插HD74LS07FPEL，HD74LS14FPEL，HD74LS51FPEL

SN74LS20NSR 14/LS21/27/30/32/33/38/51/122 HD74LS132FPEL SOP

贴片直插HD6805W1D51PJ，HD68HC000CP10，HD74LS245FPEL