[time-nuts] 4046 replacement

[wb6bnq]

Hi Donald,

You could consider the NXP 74HCT9046A as a replacement.  It is an 
improved version of 4046.  However, you do need to study the spec sheet 
as it is a bit different, but in a good way.

I have included an attached PDF of the spec sheet, if it makes through 
the mail list server.

Bill....WB6BNQ


donald collie wrote:

>I have 4  frequency synthesiser projects, each using HEF4046BCN`s, but have
>recently read that this CMOS IC has a design flaw. What would be a better
>chip to retrofit? I`m thinking perhaps a HEF74HC4046AN [that`s if it
>doesn`t have the same bug], or a 74HC7046AN - which is similar. Both these
>chips are more-or-less pin compatable TIA for any
>advice!.......................................................................................................Don
>
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