PCN 0713: Pin Out Changes for the Fusion Product Family

August 30, 2007
PCN Number: 0713
PCN Change Level: Major
Subject: Pin Out Changes for the Fusion Product Family
Dear Customer,
This PCN provides information on changes in the pin outs for all packages for AFS090,
AFS250, AFS600, and AFS1500 devices. Affected devices and packages are listed in
Table 1. These pin out changes were made to increase the ESD robustness of the devices.
Table 1 •
Device
Fusion Pin Changes
Package
QNG108
QNG180
FG256/FGG256
QNG180
AFS250 PQ208/PQG208
FG256/FGG256
PQ208/PQG208
AFS600
FG256/FGG256
FG484/FGG484
FG256/FGG256
AFS1500 FG484/FGG484
FG676/FGG676
AFS090
Old Pin #
Old Pin
Name
New Pin #
New Pin
Name
B25
B29
T14
B29
102
T14
102
T14
AB18
T14
AB18
AD20
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
VCC33ACAP
B25
B29
T14
B29
102
T14
102
T14
AB18
T14
AB18
AD20
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
VCC33A
Devices that do not have the pin change, but must update the capacitor value:
•
•
AFS250XW
AFS600XX, AFS600XY, AFS600XZ, and AFS600ES (date codes before 0738)
Actel Corporation
2061 Stierlin Court, Mountain View, CA 94043
Phone: 650.318.4200 Fax 650.318.4600
For existing board designs, Actel recommends connecting the previous VCC33ACAP pad to
the same 3.3 V supply as the VCC33A pads. If customers do not want to change their board,
the VCC33ACAP pad can be connected to a 100 pF cap to ground.
For all new designs, Actel recommends connecting all VCC33A pads to the same 3.3 V
supply.
Previous Fusion datasheets (prior to Advanced v0.8 released in June 2007) recommended
using VCC33ACAP 1 uF cap to GND. After conducting additional analysis, Actel
determined that if the VCC33A power supply ramps up too quickly, then an internal
transistor on the device could be stressed. While Actel has not seen this occur on any
devices, the recommended capacitor value has been changed to provide more margin for
customers. Therefore, to avoid causing permanent damage to the device, Actel strongly
recommends that a capacitor of 100 pF be used.
The Fusion datasheet will be updated by the end of September 2007 and will be posted at:
http://www.actel.com/documents/Fusion_DS.pdf
If you have any questions, please contact Actel's Application Technical Support at
[email protected].
Regards,
Actel Corporation
Actel Corporation
2061 Stierlin Court, Mountain View, CA 94043
Phone: 650.318.4200 Fax 650.318.4600