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全新SN74194D SN74193N SN74193J SN74193D SN74193B
SN74193N PQ033EZ012P DS0026J/883C L5832 UB8BT
贴片直插SN74194N SN74193J SN74161N SN74164J SN74259J 5
贴片直插SN74160N,SN65-R68,SN54157J,SN54F08J,SN74193N,4