Jan 3, 2009 #1 C Codeman Member level 2 Joined Jun 11, 2001 Messages 46 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 208 Hi All, I have a circuit that uses a 74HC245 as buffer. I only use A bus to B bus direction and only use 4 inputs Device is allways enabled. Can I leave the other inputs floating. Or should I ground them? TIA
Hi All, I have a circuit that uses a 74HC245 as buffer. I only use A bus to B bus direction and only use 4 inputs Device is allways enabled. Can I leave the other inputs floating. Or should I ground them? TIA
Jan 3, 2009 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,400 Helped 14,748 Reputation 29,778 Reaction score 14,093 Trophy points 1,393 Location Bochum, Germany Activity points 298,003 buffer 74hc245 With CMOS logic, e. g. HC, you may connect unused pins either to GND or VCC, but they should not float. Otherwise you must expect exessive current consumption and wildly switching outputs at worst case.
buffer 74hc245 With CMOS logic, e. g. HC, you may connect unused pins either to GND or VCC, but they should not float. Otherwise you must expect exessive current consumption and wildly switching outputs at worst case.