參數(shù)資料
型號: MCIMX507CVM8B
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA400
封裝: 17 X 17 MM, 0.5 MM PITCH, ROHS COMPLIANT, PLASTIC, MABGA-400
文件頁數(shù): 52/120頁
文件大?。?/td> 1980K
代理商: MCIMX507CVM8B
Electrical Characteristics
i.MX50 Applications Processors for Consumer Products, Rev. 0
Freescale Semiconductor
37
4.5
I/O AC Parameters
The load circuit and output transition time waveforms are shown in Figure 4 and Figure 5. The AC
electrical characteristics for slow and fast I/O are presented in the Table 24 and Table 25, respectively. Note
that the fast or slow I/O behavior is determined by the appropriate control bit in the IOMUX control
registers.
Figure 4. Load Circuit for Output
Figure 5. Output Transition Time Waveform
4.5.1
GPIO I/O Slow AC Parameters
Table 24 shows the AC parameters for GPIO slow I/O.
Table 24. GPIO I/O Slow AC Parameters
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Output Pad Transition Times (Max Drive)
tr, tf
15 pF
35 pF
1.91/1.52
3.07/2.65
ns
Output Pad Transition Times (High Drive)
tr, tf
15 pF
35 pF
2.22/1.81
3.81/3.42
ns
Output Pad Transition Times (Medium Drive)
tr, tf
15 pF
35 pF
2.88/2.42
5.43/5.02
ns
Output Pad Transition Times (Low Drive)
tr, tf
15 pF
35 pF
4.94/4.50
10.55/9.70
ns
Output Pad Slew Rate (Max Drive)1
tps
15 pF
35 pF
0.5/0.65
0.32/0.37
V/ns
Output Pad Slew Rate (High Drive)
tps
15 pF
35 pF
0.43/0.54
0.26/0.41
V/ns
Output Pad Slew Rate (Medium Drive)
tps
15 pF
35 pF
0.34/0.41
0.18/0.2
V/ns
Output Pad Slew Rate (Low Drive)
tps
15 pF
35 pF
0.20/0.22
0.09/0.1
V/ns
Output Pad di/dt (Max Drive)
tdit
30
mA/ns
Test point
From output
CL
CL includes package, probe and fixture capacitance
Under test
0V
NVCC
20%
80%
20%
tr
tf
Output (at I/O)
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