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IC Model:74HCT640B1 Associated Model: 74HCT597N  74HCT620N  74HCT640DB  74HCT643D 
Model Quantity company Contact Manufacturers Batches Packaging Pricing
74HCT640B1 100  Beijing Yang-day industry Kemao Ltd. Tel:010-51601206,010-82130399,010-82112166,021-51611471,021-51611472,021-51611473 ST  9948  DIP20   
74HCT640B1   Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308 ST  DIP20  9948   
74HCT640B1 9948  Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308   ST  400  DIP20 
74HCT640B1 9948  Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308   ST  400  DIP20 
74HCT640B1 9948  Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308   ST  400  DIP20 
74HCT640B1 9948  Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308   ST  400  DIP20 
74HCT640B1 9948  Exchange Science Technologies Co., Ltd. apparently in Beijing Tel:010-51987308   ST  400  DIP20 
74HCT640B1 7000  Beijing 30 jin revitalize auspicious trade and business Co., Ltd. Tel:010-51299473 ST/9948  06+     
74HCT640B1 6000  Electronic Science Technologies Co., Ltd. of promise Tyke of Beijing Tel:010-51665702 ST/9948  06+     
74HCT640B1 400  Singapore IAP Electronics Co., Ltd. Tel:86-755-83873150/3140/3160 ST  9948