Re: Replacement 2332 ROM for CBM 8032?

From: Jim Brain <>
Date: Sat, 19 Jan 2013 21:34:57 -0600
Message-ID: <>
On 1/19/2013 6:39 PM, MikeS wrote:
> I'd think one of Jim's ROM-el 2364s would do the job with a couple of 
> jumpers and maybe a diode or two.
> Dallas non-volatile RAM chips? FRAM?
> I haven't looked for a while but last time there were all sorts of 
> JEDEC-compatible chips out there...
> And of course there's always the PETvet...
> m
> ----- Original Message ----- From: "Darryl Sokoloski" 
> <>
> To: <>
> Sent: Saturday, January 19, 2013 6:28 PM
> Subject: Replacement 2332 ROM for CBM 8032?
>> Greetings CBM Hackers!
>> I am working on a project where I wish to replace 3 2332 ROMs with
>> customized versions.
>> I would like to use Jim Brain's 23XX adapter.
>> I have been unable to find a suitable 4k x 8 28-pin JEDEC-compliant
>> replacement device.
>> I would very much prefer a flash device over EEPROM, and certainly
>> would like to stay away from EPROM (I don't have a UV eraser, nor a
>> programmer).  If I must, then I will buy a programmer...
>> I've searched the internet at length only to find many replacement
>> part numbers (from TI, Atmel, Intel), etc... all of which are
>> discontinued.
>> Cheers,
>> Darryl
I know you're looking at PETVet., which is fine, but I am curious why 
you were looking for a 4K*8 EEPROM/FLASH/NVRAM JEDEC item.  23XX Adapter 
will adapt any 28 pin JEDEC IC into the 2332 socket, and need not be 4K 
in size.  THe device will tie unused address lines to high, so you can 
use larger ROM devices and it will just place the highest 4K of the 
device into the 4K memory map.


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Received on 2013-01-20 06:00:08

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