Maxtrac 900 meg conventional firmware FVN4019A

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Postby KB9KST » Fri Dec 07, 2001 8:42 pm

Anyone out there have one of these chips for sale or can help me get one. I have a programmer for it.

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Postby xmo » Sun Dec 09, 2001 5:30 pm

If you come up dry here, the chip is less than $25 from Motorola parts - or even cheaper if you know someone at a shop. Once you get the chip you will probably want to use that PROM programmer to make an archive file of the chip for backup purposes (or whatever)
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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby escomm » Wed Feb 08, 2012 9:30 am

Sorry to bump an old post. These chips are canceled at Motorola. Anyone know who is the manufacturer and their part number? I suspect it's Atmel but am shooting from the hip on that one.
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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby fineshot1 » Wed Feb 08, 2012 1:29 pm

escomm wrote:Sorry to bump an old post. These chips are canceled at Motorola. Anyone know who is the manufacturer and their part number? I suspect it's Atmel but am shooting from the hip on that one.


do you need one? if so i have one i could spare you.
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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby SlimBob » Tue Apr 10, 2012 4:40 pm

From memory I believe it's a 27C256-20.
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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby PETNRDX » Tue Apr 10, 2012 9:35 pm

It is a 27C256.
Since Mot doesn't sell them anymore, I make my own.
I have been finding them in old equipment like PC mother boards ( BIOS-ROMS ) and old modems, etc. Even old 800 mhz Maxtracs.
Blank with a UV eraser, copy with a generic EPROM "burner".
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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby ifr1600 » Tue May 29, 2012 1:36 pm

I have the burn once proms to make these. I have several ready to go. I also have the new conventional face plates to replace the trunking face plate.

Send Private mail for details and price.

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Re: Maxtrac 900 meg conventional firmware FVN4019A

Postby KE7JFF » Thu May 31, 2012 7:53 am

I have the prom file for these and am slowly acquiring the 27C256 chips from various collections...and sometimes, if you open up a 900 trunking radio, I've found ONCE the old conventional prom taped to the inside of the case.
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