- Thread starter cpsystem3
- Start date
mx27c4100
Did not try programming the 27c4000 as that chip yet though. Might work if you ignore the device ID error.
Did not try programming the 27c4000 as that chip yet though. Might work if you ignore the device ID error.
A
Apocalypse
The TOP3000 can do 27C4100 and 27C400.
27C4000 and 27C4002 are problematic though.
27C4000 and 27C4002 are problematic though.
I also ordered MX27C4100, let's see. Kinda bummed that Eetools messed up the 27c4000 support, since both the Topmax and Chipmax are struggling. I'll try reaching out to their customer support, who knows!
A
Apocalypse
Honestly apart from an obscure Chinese programmer I had never ever heard of before, only high end programmers can do 27C4000 and 27C4002.
Those two devices use "non standard" Vcc/Vpp compared to any other one in the 27C range.
Those two devices use "non standard" Vcc/Vpp compared to any other one in the 27C range.
MX27c4000 is a 32pin equivalent to 27c020
HN27C4000G is 40pin equivalent to 27c400
27c4001 is a 32pin equivalent to 27c040
27c4002 is a 40pin equivalent to 27c4096
EDIT: Fixed
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Double wrong.Macronix MX27C4000 is equivalent to 27C040 (32 pin 4Mbit JEDEC EPROM) but Hitachi HN27C4000G is same of 27C400 so 40 pin 4Mbit EPROM device with MASK ROM pinout.Always best thing to read datasheets before
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Wrong this too.
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you're right I was confusing 4100 and 4001
No problem.I found that also programmer manufacturers like EETools made a lot of confusion among JEDEC and non-JEDEC device like 27C1000 and 27C1001.This is because some devices have been called with same name but different pinout.
I have found this too
you would think with the price they charge for these devices they would have got it sorted by now.
pacoarcade
Professional
Maybe there is voltage drop (possibly due to dirty IC legs)? I'd try setting 13.5V in the programmer.Anyone tried this conversation and owns a ChipMax2?
Everything went smooth except programming the Hitachi HN27C4000G. I bought 10 of them through BuyICNow, and all of the 10 results in a "Program Error" at about 3 ot 7%.
I tried to download the romset though different sites, but none of them (sets or the 4 different possible files for this chip) worked :/
Disclaimer: I'm not an expert so take my advice with a grain of salt.
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While not the same programmer I have a Stager vSpeed which is... temperamental at best with 27c4000. I actually had to up the vpp inside the configuration file by 0.25V increments until it finally started programming them. I think mine's either 13 or 13.25V, not able to check.
ShootTheCore
Legendary
Let us know what EETools says. I've had the same issue with those chips refusing to program with my ChipMax 2. They do program correctly with my Wellon VP-390.
