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HD74ACT240FPEL HD74ACT164FPEL HD74ACT139FPEL HD74ACT138TELL
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贴插ADDI9001BBCZRL-HD74ACT240FPEL-HD74HC160FP-TL-B
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HD74ACT244FPEL HD74ACT240TELL HD74ACT240FPEL HD74ACT164F
HD74ACT138RP-EL HD74ACT138TELL HD74ACT139FPEL HD74ACT240原装
STK0050 74ACT138DR SOP3.9 P2000SCLRP HD74HC240FPEL原装