参数资料
型号: A54SX72A-1CQ256B
厂商: Microsemi SoC
文件页数: 38/108页
文件大小: 0K
描述: IC FPGA SX-A 108K 256-CQFP
标准包装: 1
系列: SX-A
LAB/CLB数: 6036
输入/输出数: 203
门数: 108000
电源电压: 2.25 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 256-BFCQFP,带拉杆
供应商设备封装: 256-CQFP(75x75)
SX-A Family FPGAs
v5.3
2-15
Output Buffer Delays
AC Test Loads
Figure 2-4 Output Buffer Delays
To AC Test Loads (shown below)
PAD
D
E
TRIBUFF
In
GND
50%
Out
1.5 V
50%
1.5 V
En
GND
50%
Out
1.5 V
50%
10%
En
GND
50%
Out
GND
1.5 V
50%
90%
VOL
VOL
V
CC
V
CC
V
CC
V
CC
V
OH
t
ENZH
t
ENHZ
t
ENZL
t
ENLZ
t
DLH
Figure 2-5 AC Test Loads
35 pF
VCC
GND
35 pF
VCC
GND
5 pF
R to VCC for
t
PZL
R to GND for tPZH
R = 1 k
Ω
R to VCC for
tPZL
R to GND for tPZH
R = 1 k
Ω
To the Output
Under Test
To the Output
Under Test
To the Output
Under Test
Load 1
(Used to measure
propagation delay)
Load 2
(Used to measure enable delays)
Load 3
(Used to measure disable delays)
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