why ICS starts with 74
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Answer Posted / anandkumar m k
Not every IC's start with 74, we have 7805,7905, etc. In
case of IC 74 series, we can see that the pin 4 and 7 are
supplied -Vcc and +Vcc supplied respectively. And most
importantly this convention is not the case in every IC
that first two number denotes the power supply pins.
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