[vcf-midatlantic] DEC 5380 chip

[William Dudley]

so compare the pinout to a 7402.

Put a scope (or voltmeter) on it and :

1. see if power supply is 5v
2. what is voltage of "low"
3. ahat is voltage of "high"

and compare to TTL spec.

Like I said, pinout can be jiggered using wire and a soldering iron.

Bill


This email is free of malware because I run Linux.

On Sun, Feb 26, 2017 at 4:20 PM, W2HX <w2hx at w2hx.com> wrote:

> Without the specs, I can't be sure. However it appears to be fed by and in
> turn feeds TTL stuff.
>
> -----Original Message-----
> From: vcf-midatlantic [mailto:vcf-midatlantic-bounces at lists.
> vintagecomputerfederation.org] On Behalf Of William Dudley via
> vcf-midatlantic
> Sent: Sunday, February 26, 2017 4:10 PM
> To: vcf-midatlantic
> Cc: William Dudley
> Subject: Re: [vcf-midatlantic] DEC 5380 chip
>
> Is the 5380 TTL ? RTL? DTL?  Is the pinout same as one in those families?
> (Pinouts can be "fixed" by putting the replacement chip on a dip header
> and re-wiring it, too).
>
> I have a stock of DTL, and some old ECL, too, as well as the usual TTL and
> LSTTL.
>
> Bill Dudley
>
>
> This email is free of malware because I run Linux.
>
> On Sun, Feb 26, 2017 at 3:43 PM, W2HX via vcf-midatlantic <
> vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
>
> > Friends, google has not been kind to me. Looking for the datasheet on
> > the
> > 5380 chip used in my PDP-8/e in the M8650 TTY board (and elsewhere,
> > surely). It appears to be a quad, dual input AND chip with inverted
> > inputs (ie a NOR gate). Can anyone help me find this? much appreciated.
> > Eugene W2HX
> >
> >
>