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Re: [softrock40] 74AC74 Issues

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  • Alan
    ... From: niall_behan Subject: [softrock40] 74AC74 Issues ... Either you have a very special 7474 or ... You ve discovered what happens with some digital
    Message 1 of 2 , Aug 31, 2009
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      ----- Original Message -----
      From: "niall_behan"
      Subject: [softrock40] 74AC74 Issues


      >I found that pins 2,5,6,8,9,11 and 12 on the 74AC74 are reading 'overload' (ie: >240vdc) on my DMM. The others are reading nominal.

      Either you have a very special 7474 or

      >Is it possible that a standard digital multimeter could get confused by the wave nature of the clock signal ?

      You've discovered what happens with some digital meters. Digital is not always best. Or maybe the cheaper ones are not always?

      73 Alan G4ZFQ
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