Answers Database

XC4000XL: some devices have a higher VCC pin to GND pin ratio


Record #2609

Product Family:  Hardware

Product Line:  4000XL

Problem Title:
XC4000XL: some devices have a higher VCC pin to GND pin ratio


Problem Description:
Keywords: xc4000xl, pinouts, VCC, GND

Urgency: standard

General Description: In some of the XC4000XL devices, there
are more GND pins than VCC.  However, in some of the other
devices (for example, 4085XL), there are more VCC pins than
GND pins.


Solution 1:

In some of the XC4000XL devices, additional VCC pins have
been included to facilitate future migration to XC4000XV
devices, which require additional VCC pins for IO and/or
core.



End of Record #2609