MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
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yelenavik

USA
31 Posts
Posted - 03/05/2009 :  15:10:36  Show Profile  Reply with Quote
Hello,this programmer have current protection from bad chip?and can work with chip lower than 3.3v ?.Thank's
Reply #1

ZLM

2945 Posts
Posted - 03/05/2009 :  20:38:53  Show Profile  Reply with Quote
The GQ-4X has protection circuit to protect itself. Such as chip reversed installed in ZIF socket.

Most low voltage devices has "Backward Compatibility". For example, the 2.7V devices will accept 2.7V-5.5V operating voltage for programming. Such as AT25020(2.7V-5.5V),25SF010(2.7V-3.6V),Microchip 1.8V 93AAXX series(1.8V-5.5V).

So, the lowest voltage supported on the GQ-4X is 1.8V devices.
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Reply #2

supra

Canada
3 Posts
Posted - 03/25/2009 :  06:08:02  Show Profile  Reply with Quote
quote:
Originally posted by ZLM

The GQ-4X has protection circuit to protect itself. Such as chip reversed installed in ZIF socket.

Most low voltage devices has "Backward Compatibility". For example, the 2.7V devices will accept 2.7V-5.5V operating voltage for programming. Such as AT25020(2.7V-5.5V),25SF010(2.7V-3.6V),Microchip 1.8V 93AAXX series(1.8V-5.5V).

So, the lowest voltage supported on the GQ-4X is 1.8V devices.


Can I upgrade from 3.01 to 4x using GQ-3x?
supra
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Reply #3

ZLM

2945 Posts
Posted - 03/25/2009 :  13:55:54  Show Profile  Reply with Quote
yes. The software Re4.0 is for both GQ-3X and GQ-4X.
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