參數(shù)資料
型號： MCIMX31_07
廠商： 飛思卡爾半導體(中國)有限公司
英文描述： Multimedia Applications Processors
中文描述： 多媒體應用處理器
文件頁數(shù)： 18/108頁
文件大小： 1235K
代理商： MCIMX31_07
i.MX31/i.MX31L Advance Information, Rev. 2.3
18
Freescale Semiconductor
Electrical Characteristics
4.3.2
AC Electrical Characteristics
Figure 3
depicts the load circuit for outputs.
Figure 4
depicts the output transition time waveform. The
range of operating conditions appears in
Table 13
for slow general I/O,
Table 14
for fast general I/O, and
Table 15
for DDR I/O (unless otherwise noted).
Figure 3. Load Circuit for Output
Figure 4. Output Transition Time Waveform
Table 13. AC Electrical Characteristics of Slow
1
General I/O
1
Fast/slow characteristic is selected per GPIO (where available) by “slew rate” control. See reference manual.
ID
Parameter
Symbol
Test
Condition
Min
Typ
Max
Units
PA1
Output Transition Times (Max Drive)
tpr
25 pF
50 pF
0.92
1.5
1.95
2.98
3.17
4.75
ns
Output Transition Times (High Drive)
tpr
25 pF
50 pF
1.52
2.75
–
4.81
8.42
ns
Output Transition Times (Std Drive)
tpr
25 pF
50 pF
2.79
5.39
–
8.56
16.43
ns
Table 14. AC Electrical Characteristics of Fast
1
General I/O
2
1
Fast/slow characteristic is selected per GPIO (where available) by “slew rate” control. See reference manual.
2
Use of GPIO in fast mode with the associated NVCC > 1.95 V can result in excessive overshoot and ringing.
ID
Parameter
Symbol
Test
Condition
Min
Typ
Max
Units
PA1
Output Transition Times (Max Drive)
tpr
25 pF
50 pF
0.68
1.34
1.33
2.6
2.07
4.06
ns
Output Transition Times (High Drive)
tpr
25 pF
50 pF
.91
1.79
1.77
3.47
2.74
5.41
ns
Output Transition Times (Std Drive)
tpr
25 pF
50 pF
1.36
2.68
2.64
5.19
4.12
8.11
ns
Test Point
From Output
Under Test
CL
CL includes package, probe and fixture capacitance
0V
NVCC
20%
80%
80%
20%
PA1
PA1
Output (at I/O)
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