參數(shù)資料
型號: XC3S700A-4FT256I
廠商: Xilinx Inc
文件頁數(shù): 99/132頁
文件大?。?/td> 0K
描述: IC FPGA SPARTAN 3 256FTBGA
標(biāo)準(zhǔn)包裝: 90
系列: Spartan®-3A
LAB/CLB數(shù): 1472
邏輯元件/單元數(shù): 13248
RAM 位總計: 368640
輸入/輸出數(shù): 161
門數(shù): 700000
電源電壓: 1.14 V ~ 1.26 V
安裝類型: 表面貼裝
工作溫度: -40°C ~ 100°C
封裝/外殼: 256-LBGA
供應(yīng)商設(shè)備封裝: 256-FTBGA
Pinout Descriptions
DS529-4 (v2.0) August 19, 2010
69
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 FPGA is reported using
calculator integrated in the Xilinx ISE development
software. Table 62 provides the thermal characteristics for
the various Spartan-3A FPGA package offerings. This
information is also available using the Thermal Query tool
The junction-to-case thermal resistance (
θ
JC) indicates the
difference between the temperature measured on the
package body (case) and the die junction temperature per
watt of power consumption. The junction-to-board (
θ
JB)
value similarly reports the difference between the board and
junction temperature. The junction-to-ambient (
θ
JA) value
reports the temperature difference between the ambient
environment and the junction temperature. The
θ
JA value is
reported at different air velocities, measured in linear feet
per minute (LFM). The “Still Air (0 LFM)” column shows the
θ
JA value in a system without a fan. The thermal resistance
drops with increasing air flow.
Table 62: Spartan-3A Package Thermal Characteristics
Package
Device
Junction-to-Case
(
θ
JC)
Junction-to-
Board (
θ
JB)
Junction-to-Ambient (
θ
JA)
at Different Air Flows
Units
Still Air
(0 LFM)
250 LFM
500 LFM
750 LFM
VQ100
VQG100
XC3S50A
12.9
30.1
48.5
40.4
37.6
36.6
°C/Watt
XC3S200A
10.9
25.7
42.9
35.7
33.2
32.4
°C/Watt
TQ144
TQG144
XC3S50A
16.5
32.0
42.4
36.3
35.8
34.9
°C/Watt
FT256
FTG256
XC3S50A
16.0
33.5
42.3
35.6
35.5
34.5
°C/Watt
XC3S200A
10.3
23.8
32.7
26.6
26.1
25.2
°C/Watt
XC3S400A
8.4
19.3
29.9
24.9
23.0
22.3
°C/Watt
XC3S700A
7.8
18.6
28.1
22.3
21.2
20.7
°C/Watt
XC3S1400A
5.4
14.1
24.2
18.7
17.5
17.0
°C/Watt
FG320
FGG320
XC3S200A
11.7
18.5
27.8
22.3
21.1
20.3
°C/Watt
XC3S400A
9.9
15.4
25.2
19.8
18.6
17.8
°C/Watt
FG400
FGG400
XC3S400A
9.8
15.5
25.6
19.2
18.0
17.3
°C/Watt
XC3S700A
8.2
13.0
23.1
17.9
16.7
16.0
°C/Watt
FG484
FGG484
XC3S700A
7.9
12.8
22.3
17.4
16.2
15.5
°C/Watt
XC3S1400A
6.0
9.9
19.5
14.7
13.5
12.8
°C/Watt
FG676
FGG676
XC3S1400A
5.8
9.4
17.8
13.5
12.4
11.8
°C/Watt
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