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Yes_Burundi's avatar
Yes_Burundi
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3 years ago

USB Blaster, Flex 10KE, EPC2 & JTAG voltage

How should one interpret this document*1 (see attached picture) and it's voltage requirements? As far as I know, all of the 10KE series pins are 5V tolerant, including JTAG pins, and EPC2 can also w...
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WZ2's avatar
WZ2
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3 years ago

Hi there,

Your answer is correct, considering the characteristics of the JTAG chain, as long as the voltage of the JTAG vcc and the pull-up pin is greater than the VIH (min) of all devices on the chain, it can be used normally, and at the same time ensure that the pin voltage is not greater than the device on the chain The maximum withstand value to ensure that there will be no damage to the components on the chain.

Best regards,

WZ