XC3S250E Xilinx, Inc., XC3S250E Datasheet - Page 145

• Manufacturer Part Number: XC3S250E
• Description: Spartan-3E FPGA Family
• Manufacturer: Xilinx, Inc.

Pinout Descriptions
Table 17: PQ208 Package Pinout
Table 18: User I/Os Per Bank for the XC3S250E and XC3S500E in the PQ208 Package
24
Top
Right
Bottom
Left
TOTAL
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCINT
Bank
Package
Edge
TDI
TDO
TMS
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCINT
I/O Bank
XC3S250E
XC3S500E
Pin Name
0
1
2
3
Maximum
158
PQ208
I/O
38
40
40
40
P207
P157
P155
P111
P149
P166
P195
P44
P66
P92
P13
Pin
P7
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCAUX
VCCINT
JTAG
JTAG
JTAG
Type
I/O
18
23
58
9
8
www.xilinx.com
Table 17: PQ208 Package Pinout
User I/Os by Bank
Table 18
distributed between the four I/O banks on the PQ208 pack-
age.
Footprint Migration Differences
The XC3S250E and XC3S500E FPGAs have identical foot-
prints in the PQ208 package. Designs can migrate between
the XC3S250E and XC3S500E without further consider-
ation.
VCCINT
VCCINT
VCCINT
INPUT
Bank
25
6
7
6
6
All Possible I/O Pins by Type
indicates how the 158 available user-I/O pins are
VCCINT
VCCINT
VCCINT
DUAL
XC3S250E
XC3S500E
Pin Name
21
24
46
1
0
Advance Product Specification
DS312-4 (v1.1) March 21, 2005
VREF
13
5
3
2
3
PQ208
P117
P170
P67
Pin
VCCINT
VCCINT
VCCINT
GCLK
Type
16
8
0
0
8
R