I was rechecking the design of of a board that I will be making in the next few days and I just noticed the pinout of the Texas Instrument 74LS157 is different than the pinout from Fairchild or Signetics? TI says Inputs 3A=11 3B=10 4A=14 4B=13! Everyone else has it as 3a=14 3b=13 4a=11 4b=10! who is right? Even the Library in ExpressSCH has it other than what TI shows in thier Data BooksTI? I dont know which one to trust! Regards Mike
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74LS157 pinouts?
2009-05-17 by michael tenore