全新SN54L20J/883B SN54HCT244F3A SN54HC191TDE2 SN54HC191TDE1

全新原装SN54HC190J SN54HC191J SN54HC191TDE1 SN54HC191TDE2集

SN54HC00J/SN54HC04J/SN54HC191TDE1

计数器/分频器 SN54HC191TDE1 - TI全新原装正品