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IC Model:MC74LS640 Associated Model: MC74LS47DR2  MC74LS540  MC74LS74  MC74LS74AN 
Model Quantity company Contact Manufacturers Batches Packaging Pricing
MC74LS640 69  Shenzhen is wide to hold Electronics Co., Ltd. Tel:0755-83682661 MOT  92  SOIC-20   
MC74LS640 39  - United Nations Development Technology Co., Ltd. Tel:0755-83681008 MOT  92  SOIC-20   
MC74LS640 2006  Letter Electronics Co., Ltd. of Shenzhen Tin Shui Tel:0755-82948181 MOT  SOIC-20  39   
MC74LS640 39  Shenzhen Hua Lian Electronics Co., Ltd. Tel:0755-6168 5381/6168 5382 MOT  92  SOIC-20   
MC74LS640   Shenzhen Hua Lian Electronics Co., Ltd. Tel:0755-6168 5381/6168 5382 MOT    39  92 
MC74LS640 92  Shenzhen City Feiyu Electronic Co., Ltd Tel:0755-33062552 MOT  SOIC-20  39