XC3S50A Xilinx Corp., XC3S50A Datasheet - Page 113

• Manufacturer Part Number: XC3S50A
• Description: Spartan-3a Fpga Family Data Sheet
• Manufacturer: Xilinx Corp.

Footprint Migration Differences
The XC3S1400A FPGA is the only Spartan-3A device
offered in the FG676 package. However,
summarizes footprint and functionality differences between
the XC3S1400A and the XC3SD1800A in the Spartan-3A
DSP platform. There are 17 unconnected balls in the
XC3S1400A that become 16 input-only pins and one I/O pin
in the XC3SD1800A. All other pins not listed in
unconditionally migrate between the Spartan-3A platform
devices and the Spartan-3A DSP platform devices available
in the FG676 package. The arrows indicate the direction for
easy migration. For more details on the Spartan-3A DSP
platform and pinouts, and additional differences in the
FG676 pinout for the XC3SD3400A device, see DS610.
DS529-4 (v1.5) July 10, 2007
Product Specification
R
Table 80
Table 80
www.xilinx.com
Table 80: FG676 Footprint Differences
AC22
AD23
W18
G18
AA8
AC5
AD5
A24
B24
Y18
Y19
F18
Pin
D5
E6
E9
Y8
F9
Legend:
DIFFERENCES
Bank
0
0
0
0
0
0
0
0
2
2
2
2
2
2
2
2
2
This pin can unconditionally migrate from the device on
the left to the device on the right. Migration in the other
direction is possible depending on how the pin is
configured for the device on the right.
XC3S1400A
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
Migration
17
Pinout Descriptions
INPUT
INPUT
INPUT
VREF (INPUT)
INPUT
VREF (INPUT)
INPUT
VREF (INPUT)
VREF (INPUT)
VREF (INPUT)
INPUT
INPUT
INPUT
INPUT
I/O
INPUT
VREF(INPUT)
XC3SD1800A
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