XC3SD1800A-4CS484I Xilinx Inc, XC3SD1800A-4CS484I Datasheet - Page 65

• Manufacturer Part Number: XC3SD1800A-4CS484I
• Description: FPGA Spartan®-3A Family 1.8M Gates 37440 Cells 667MHz 90nm Technology 1.2V 484-Pin LCSBGA
• Manufacturer: Xilinx Inc

Specifications of XC3SD1800A-4CS484I

• Package: 484LCSBGA
• Family Name: Spartan®-3A
• Device Logic Units: 37440
• Device System Gates: 1800000
• Maximum Internal Frequency: 667 MHz
• Typical Operating Supply Voltage: 1.2 V
• Maximum Number Of User I/os: 309
• Ram Bits: 1548288

Package Thermal Characteristics
The power dissipated by an FPGA application has implications on package selection and system design. The power
consumed by a Spartan-3A DSP FPGA is reported using either the
calculator integrated in the Xilinx ISE® development software.
Spartan-3A DSP device package offerings. This information is also available using the
The junction-to-case thermal resistance (θ
body (case) and the die junction temperature per watt of power consumption. The junction-to-board (θ
reports the difference between the board and junction temperature. The junction-to-ambient (θ
temperature difference between the ambient environment and the junction temperature. The θ
different air velocities, measured in linear feet per minute (LFM). The “Still Air (0 LFM)” column shows the θ
system without a fan. The thermal resistance drops with increasing air flow.
Table 62: Spartan-3A DSP FPGA Package Thermal Characteristics
DS610 (v3.0) October 4, 2010
Product Specification
Package
CSG484
FGG676
CS484
FG676
XC3SD1800A
XC3SD3400A
XC3SD1800A
XC3SD3400A
Device
Junction-to-Case
(θ
4.1
3.5
4.7
3.8
JC
)
JC
) indicates the difference between the temperature measured on the package
Junction-to-
Board (θ
www.xilinx.com
6.8
5.6
7.8
6.4
JB
)
Table 62
(0 LFM)
Still Air
Spartan-3A DSP FPGA Family: Pinout Descriptions
XPower Power Estimator
18.0
16.9
15.9
14.7
provides the thermal characteristics for the various
Junction-to-Ambient (θ
at Different Air Flows
250 LFM
13.3
12.2
11.6
10.5
Thermal Query
500 LFM
12.3
11.0
10.6
9.4
or the
JA
JA
) value reports the
value is reported at
JA
XPower Analyzer
)
750 LFM
JB
tool.
11.5
10.4
10.0
) value similarly
8.9
JA
value in a
Units
°C/W
°C/W
°C/W
°C/W
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