全新SN74HCT244NG4 SN74HCT244DWR SN74HCT244DBR SN74HCT244APW

SN74LVTH245APW CD74HCT240PW CD74HCT240PWT SN74ABT244APWR

SN74HCT244APWR 74HCT244APW HT244A 电路芯片 原装

SN74HCT245/240/244/273/373 APW/APWR/PW/PWR/QPWRQ1 TSSOP20

缓冲器 MM74HCT244MTCX SN74ABT2244APW SN74ABT244APW