Reply to post: Re: Dynamic logic? - The RCA1802? Great chip

Picking apart the circuits in the ARM1 – the ancestor of your smartphone's brain

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Re: Dynamic logic? - The RCA1802? Great chip

In some circles 4000 series had a terrible reputation for unreliability, and I often wondered how much of this was simply failure to terminate properly.

My vote is on the latter. I never had any issues with 4000 series. In fact the wide supply voltage range and high fan-out was very useful.

They did tend to somewhat sensitive to ESD, so perhaps the reputation in some circles was due to combination of bad design and improper handling.

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