Compatibility of 1101A and 1101A1

[dwight]

Without looking at the 8008 specs, I'd assume either part would work.

Dwight


________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Brad H <vintagecomputer at bettercomputing.net>
Sent: Friday, January 20, 2017 5:31:53 PM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Compatibility of 1101A and 1101A1

I'd assume 0.5mhz -- I have a plain 8008 (not 8008-1).

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of dwight
Sent: Friday, January 20, 2017 4:53 PM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: Compatibility of 1101A and 1101A1

What clock rate are you using?

Dwight


________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Brad H
<vintagecomputer at bettercomputing.net>
Sent: Friday, January 20, 2017 4:24:26 PM
To: dstalk at execulink.com; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Compatibility of 1101A and 1101A1



Ok.  I'm assuming they can work together then?  I have scoured the net and
found a couple of pics of mark-8 boards with a mix of 1101a and 1101a1.. or
maybe thats why they werent working? :)


Sent from my Samsung device

-------- Original message --------
From: dstalk at execulink.com
Date: 2017-01-20  2:54 PM  (GMT-08:00)
To: cctalk at classiccmp.org
Subject: Re: Compatibility of 1101A and 1101A1

On Fri Jan 20 15:19:24 2017 vintagecomputer at bettercomputing.net (Brad H)
wrote:
>
> I have some C1101A RAMs I was planning to use in my Mark-8 project.
> I'm having trouble finding more, as previously mentioned because the
> price has shot up so much.  I'm wondering, I'm finding lots of P1101A1
> RAMs with the correct date codes.. are those compatible with
> C1101A/P1101A?  I don't understand what the 1 at the end signifies.
>

According to my TI manual the 1101A is 1500 ns while the A1 is
1000 ns.