贴片直插SN74LS259ML1G，SN74LS258BML2，SN74LS259DR2G，4

贴片直插SN74LS365ADR2G，SN74LS258BML2G，SN74LS273DWR2G，4

SN74LS258BML1【MUX, 4-FUNC, 2 LINE INPUT, TTL】

贴片直插SN74LS258BML1G，SN74LS257BML1G，SN74LS257BMR2G，4

贴片直插SN74LS258BML1，SN74LS257BML1，SN74LS257BMR2，4