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Old 04-12-2018, 07:45 PM   #1
sam_sam_sam
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Default Does anyone have a ( 18CV8P ) programmer

I look for someone who has a programmer that can program a couple of these chips for me

If someone has a programmer I will give more details

I not sure where to post this if not in the right place please move it to the right place thanks
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9 PC LCD Monitor
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30 Desk Top Switching Power Supply
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These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

1 Over Head Crane Current Sensing Board
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All of these had CAPs POOF
All of the mosfet that are taken out by bad caps

Last edited by sam_sam_sam; 04-12-2018 at 08:06 PM..
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Old 04-13-2018, 02:30 AM   #2
re-atari
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Default Re: Does anyone have a ( 18CV8P ) programmer

Quote:
Originally Posted by sam_sam_sam View Post
I look for someone who has a programmer that can program a couple of these chips for me

If someone has a programmer I will give more details

I not sure where to post this if not in the right place please move it to the right place thanks
Is this a GAL? If so, an (ancient) HiLo ALL-07a takes AMI and GOULD PEEL18CV8, Hyundai HY18CV8, and ICT PEEL18CV8 and PEEL18CV8Z. A (just as ancient) DataIO Chiplab takes these as well, with exception of the ICT PEEL 18CV8Z.
Problem is both programmers connect through the LPT-port, which modern mainboards don't have anymore, and their DOS-based software programs the LPT-port at low level. It takes some tinkering to get them working in a Win DOS-box on versions newer than XP.
The TL866's device list doesn't mention these types.

Is the P at the end of the chip type designation relevant? If so, you'll have to study the datasheet to find out if the types listed above will actually be suited as a replacement.

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Old 04-13-2018, 03:40 AM   #3
sam_sam_sam
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Default Re: Does anyone have a ( 18CV8P ) programmer

Here is the data sheet for this device

https://datasheet.octopart.com/18CV8...et-7276731.pdf
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Old 04-13-2018, 06:10 AM   #4
re-atari
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Default Re: Does anyone have a ( 18CV8P ) programmer

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Originally Posted by sam_sam_sam View Post
Here is the data sheet for this device

https://datasheet.octopart.com/18CV8...et-7276731.pdf
So, it's not a GAL, but a PEEL PLD. Looks like the P at the end of the chip type designation just stands for 'Plastic' (i.e. the IC casing). As long as you obtain a (NOS?) substitute of the same speed category, you should be OK. Be aware that Ebay and AliExpress are littered with relabelled fake components, be it transistors, IC's and even passive components. Buy from a trusted reputable source.

Note as well that PAL's, GAL's and also this IC, have a security bit built in, which prevents their contents from being dumped. Check datasheet page 4, under 'Design Security'. You can't copy it like you'd do with an eprom. So, you first need to get hold of the (verified to be correct) data that you want to program the IC with.

Strange that the TL866 doesn't support this IC, neither does its successor (TL866 II)

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Old 05-18-2018, 09:03 AM   #5
eccerr0r
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Default Re: Does anyone have a ( 18CV8P ) programmer

Supposedly my universal programmer supports the ICT PEEL18CV8Z but never tried it... unfortunately I know my programmer has bugs because try as I try, I can't get the likewise supported AMD PALCE20V8 working. It appears to erase but fails to program.

AMD PALCE16V8 and Atmel ATF22V10 both work in my programmer however, never had others to try yet... I wrote my own logic for them so no legality or readback problems

Oh, and yes, my programmer is connected to an old PC with a parallel port...

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Old 05-18-2018, 05:49 PM   #6
sam_sam_sam
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Default Re: Does anyone have a ( 18CV8P ) programmer

Can You give this a try and see if you can read the chip that I have

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Old 05-18-2018, 11:54 PM   #7
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Default Re: Does anyone have a ( 18CV8P ) programmer

What do you expect from it?

I'm not sure if it's very legal to copy them, but I'd give a shot if you gave me a JEDEC fuse map file for one and a blank chip... but no guarantees, my burner could really burn them ...
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