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全新SN74HCT240NE4 SN74HCT240DWR SN74HCT166M96 SN74HCT164M96
CD74HC4538M96 CD74HCT251M96 SN74HCT139DR CD74HCT166M96
SN74LS166ANSR ~ CD74HCT157M96 ~ LM27CIM5-1HJ 咨询为准