参数资料
型号: A1240A-1PQG144C
厂商: Microsemi SoC
文件页数: 4/54页
文件大小: 0K
描述: IC FPGA 4K GATES 144-PQFP COM
标准包装: 24
系列: ACT™ 2
LAB/CLB数: 684
输入/输出数: 104
门数: 4000
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
工作温度: 0°C ~ 70°C
封装/外壳: 144-BQFP
供应商设备封装: 144-PQFP(28x28)
Detailed Specifications
2- 6
R e v ision 8
Determining Average Switching Frequency
To determine the switching frequency for a design, you must have a detailed understanding of the data
input values to the circuit. The following guidelines are meant to represent worst-case scenarios so that
they can be generally used to predict the upper limits of power dissipation. These guidelines are given in
Table 2-8 Guidelines for Predicting Power Dissipation
Data
Value
Logic Modules (m)
80% of modules
Inputs switching (n)
# inputs/4
Outputs switching (p)
# output/4
First routed array clock loads (q1)
40% of sequential modules
Second routed array clock loads (q2)
40% of sequential modules
Load capacitance (CL)
35 pF
Average logic module switching rate (fm)F/10
Average input switching rate (fn)F/5
Average output switching rate (fp)F/10
Average first routed array clock rate (fq1)F
Average second routed array clock rate (fq2)F/2
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