MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 93lc66a

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T O P I C    R E V I E W
RedPat Posted - 09/03/2010 : 05:26:17
Hi,
I need some help to read this eeprom. Every time I read it, he never give me the same result.
The first time I have plug it to my gq4x, I plug it as a normal chip. But now I know is an reversed pin. Is you think I have "burned" the chip?
I want to know wich pin to plug and where. If someone can help, it will greately apreciated.
Thank you!
RedPat
9   L A T E S T    R E P L I E S    (Newest First)
PierreTheron Posted - 04/25/2011 : 21:19:17
Hi
Zlm I will test it and report back..
ZLM Posted - 04/10/2011 : 18:44:23
Try Re6.12 sodtware. It fixes 93C66 bug.
http://www.mcumall.com/download/TrueUSBWillem/GQUSBPrgRe6.12.exe
PierreTheron Posted - 04/10/2011 : 08:37:33
Hi

Also have this problem with ST93c66 eeprom microwire.

GQ-4x never does a good read or write on these.
i use other programmer to read and write to this chip.

Can this issue be adressed with the next update please?

Thanks

Pierre
cklair Posted - 11/14/2010 : 14:57:39
i tried reading it out side ,try to put in cleared file then again wont veryfy.then my frien tried with xprog m every thing went ok. i think something wrong with gx4 programmer it happend twice.low speed didnot help.cool thing in xprog m it will tell you if connectin n one or more pins are not esteblesh properly .this featur is missing in mcu mall programers.
ZLM Posted - 11/13/2010 : 21:37:49
Use lower speed and try to read and write again.

Make sure the pin 1 orientation and pin contacting are no problem.
cklair Posted - 11/13/2010 : 06:05:20
i have same problem reading rl66(93c66) i cant read it in circut i took it out read it now i try to write back it wont when i varyfy it fails i tried anther chip same part number read it out but will fail varify i have tried reading it 8 and 16 bit none work
RedPat Posted - 09/03/2010 : 08:52:26
HI!
Resolved!!!!
No need to reverse pinout!
Good bin now!
RedPat Posted - 09/03/2010 : 07:31:08
Allo!
I have the 93lc66A version. surface mount



Image Insert:

11.41 KB


Is I have to switch the pin?

pin1 to pin3
pin2 to 4
ect...

For now, I'm shorting my wire.

Thank you
ZLM Posted - 09/03/2010 : 07:08:04
The software indicated how to place the chip on the programmer ZIF.
There is a pin one marking(dot) on the chip and it should face to left-top.

also, clean up the pin and use a slow speed.

Image Insert:

3.16 KB

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