AR# 1297: 5.x Xchecker - How can I use it on low-power "L" 3.3V parts?
AR# 1297
5.x Xchecker - How can I use it on low-power "L" 3.3V parts?
Description
Several Xilinx families now have members that are low-power 3.3V parts, such as the 3000L and the 4000L. The Xchecker cable itself is designed for use with 5V parts, but there is a special adapter that will allow operation with 3.3V parts.
Solution
As detailed in the "HardWare & Peripherals User Guide", pg.3-3, an optional 3.3V adapter to the Xchecker accepts Vcc supplies from 2.9V to 5.25V. This adapter contains a voltage step-up circuit that generates the 5V needed by Xchecker.
Since it can accept voltages up to 5.25V, there is no need to remove the adapter when using 5V parts.
The adapter's order # is: HW-XCH3V
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AR# 1297
Date
03/22/2000
Status
Archive
Type
General Article
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