參數(shù)資料
型號(hào)： A1280A-CQ172CX79
元件分類： FPGA
英文描述： FPGA, CQFP172
封裝： CERAMIC, CQFP-172
文件頁(yè)數(shù)： 4/54頁(yè)
文件大?。?/td> 333K
代理商： A1280A-CQ172CX79
RadTolerant FPGAs
1- 8
v3.1
Package Thermal Characteristics
The device junction to case thermal characteristic is
θ
jc,
and the junction to ambient air characteristic is
θ
ja. The
thermal characteristics for
θ
ja are shown with two
different air flow rates.
Maximum junction temperature is 150°C.
A sample calculation of the absolute maximum power
dissipation allowed for a CQFP 172-pin package at
military temperature is as follows:
EQ 1-2
Power Dissipation
General Power Equation
P = [ICCstandby + ICCactive] * VCC + IOL * VOL * N +
IOH * (VCC – VOH) * M
EQ 1-3
where:
ICCstandby is the current flowing when no inputs
or outputs are changing.
ICCactive is the current flowing due to CMOS
switching.
IOL, IOH are TTL sink/source currents.
VOL, VOH are TTL level output voltages.
N equals the number of outputs driving TTL loads
to VOL.
M equals the number of outputs driving TTL loads
to VOH.
Accurate values for N and M are difficult to determine
because they depend on the family type, on design
details, and on the system I/O. The power can be divided
into two components: static and active.
Static Power Component
Actel FPGAs have small static power components that
result in power dissipation lower than that of PALs or
PLDs. By integrating multiple PALs or PLDs into one
FPGA, an even greater reduction in board-level power
dissipation can be achieved.
The power due to standby current is typically a small
component of the overall power. Standby power is
calculated below for commercial, worst-case conditions.
The static power dissipated by TTL loads depends on the
number of outputs driving HIGH or LOW and on the DC
load current. Again, this value is typically small. For
instance, a 32-bit bus sinking 4 mA at 0.33 V will
generate 42 mW with all outputs driving LOW, and
140 mW with all outputs driving HIGH.
Table 1-6 Package Thermal Characteristics
Package Type
Pin Count
θ
jc
θ
ja
Still Air
θ
ja
300 ft./min.
Units
Ceramic Quad Flat Pack
8
7.8
40
30
°C/W
132
7.2
35
25
°C/W
172
6.8
25
20
°C/W
196
6.4
23
15
°C/W
256
6.2
20
10
°C/W
Max. junction temp. (°C) – Max. military temp.
θ
ja
°C/W
()
-----------------------------------------------------------------------------------------------------------------------
150°C – 125°C
25°C/W
---------------------------------------1.0W
==
ICC
VCC
Power
2 mA
5.25 V
10.5 mW
相關(guān)PDF資料
PDF描述
A1280A-1CQG172B FPGA, 1232 CLBS, 8000 GATES, 60 MHz, CQFP172
A1280A-1CQG172M FPGA, 1232 CLBS, 8000 GATES, 60 MHz, CQFP172
A1280A-CQG172B FPGA, 1232 CLBS, 8000 GATES, 41 MHz, CQFP172
A1280A-CQG172M FPGA, 1232 CLBS, 8000 GATES, 41 MHz, CQFP172
A1020B-CQ84C FPGA, 547 CLBS, 2000 GATES, 37 MHz, CQFP84
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
A1280A-CQ172E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA)
A1280A-CQ172M 制造商:Microsemi Corporation 功能描述:FPGA ACT 2 Family 8K Gates 1232 Cells 75MHz 1.0um (CMOS) Technology 5V 172-Pin CQFP 制造商:Microsemi SOC Products Group 功能描述:FPGA ACT 2 8K GATES 1232 CELLS 75MHZ 1.0UM 5V 172CQFP - Trays 制造商:Microsemi Corporation 功能描述:IC FPGA 8K GATES 172-CQFP MIL
A1280A-CQ176B 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:ACT 2 Family FPGAs
A1280A-CQ176C 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:ACT 2 Family FPGAs
A1280A-CQ176I 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:ACT 2 Family FPGAs
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