Re: trying to identify a rom...

From: didier derny <didier_at_aida.org>
Date: Thu, 18 May 2017 21:34:17 +0200
Message-ID: <dbceeab5-2d9c-77d7-be9c-a62a3635338e@aida.org>
Hi,


I tried to read it as a 2532  I get 2k of FF and 2k of real code 
(visibly 6502 opcodes)

but I tought it was a 4k eprom


On 18/05/2017 21:21, Francesco Messineo wrote:
> If it was on a PET, it's either readable as 2532 or (much less probable) a 2716.
> Frank
>
> On Thu, May 18, 2017 at 8:56 PM, didier derny <didier@aida.org> wrote:
>> there are no other marking on the top
>>
>> on the bottom there is a number: 41203  made with some ink
>>
>> I know roughly what is in this eprom but I'm not sure about the machine nor
>> the rom type
>>
>> its a basic extension  but never seen this version 2.0 is probably the
>> version of the basic with which it was used
>>
>>
>> On 17/05/2017 22:21, Francesco Messineo wrote:
>>> On Wed, May 17, 2017 at 10:16 PM, didier derny <didier@aida.org> wrote:
>>>> I'm trying to identifiy an eprom type to try to read it
>>>>
>>>> the rom is made by mos technology
>>>>
>>>> 24 pin
>>>>
>>>> datecode: 3680   (the 4000/8000 were not  sold at this time ?)
>>>>
>>>> label:  Edex 2.0
>>>>
>>>>
>>>> my wild guess is to say it was for the commodore 3000  not found the
>>>> schematics I guess it's equivalent to 2001N
>>>>
>>>> on the schematics  I found rom  6332  any datasheet any where ?
>>>>
>>>> what differences between a 2332 and a 6332  ?
>>>
>>> I've never heard about 6332. 2332 is the classic 4k ROM, pin
>>> compatible with 2532 EPROM type (NOT 2732).
>>> Is there anything else under the label? There must be a part number too.
>>>
>>> Regards
>>> Frank IZ8DWF
>>>
>>>          Message was sent through the cbm-hackers mailing list
>>
>>
>>        Message was sent through the cbm-hackers mailing list
>         Message was sent through the cbm-hackers mailing list


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Received on 2017-05-18 20:02:12

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