More Apple II fun - 4116s...

[Richard]

In article <425681.71836.qm at web52706.mail.re2.yahoo.com>,
    Mr Ian Primus <ian_primus at yahoo.com>  writes:

> 
> --- On Wed, 4/29/09, falco at ihug.co.nz <falco at ihug.co.nz> wrote:
> 
> > My real question is - 9 faulty out of 48, spread across
> > both machines,
> > seems very high. Are 4116s that unreliable? 
> 
> Yes.
> 
> > Or perhaps
> > they're quite
> > sensitive to power supply problems?
> 
> Very yes.
> 
> 4116's need -5v from the power supply. They also run very hot. They're pretty
 unreliable, and a common source of problems in machines. Not to say they're te
rrible - they are good for what they are... but they are nowhere near as reliab
le as 4164's
> 
> Note that with a little modification, you can make 4164's work in the place o
f 4116's. They have almost the same pinout, they don't use -5v, and they run mu
ch cooler.

Are there data sheets online for the 4116 and 4164?
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