参数资料
型号: MCIMX537CVV8C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 800 MHz, RISC PROCESSOR, PBGA529
封装: 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, TEPBGA-529
文件页数: 104/172页
文件大小: 4562K
代理商: MCIMX537CVV8C
Electrical Characteristics
i.MX53 Applications Processors for Industrial Products, Rev. 3
Freescale Semiconductor
37
4.4.3
UHVIO Output Buffer Impedance
Table 19 shows the UHVIO output buffer impedance.
4.4.4
LVDS I/O Output Buffer Impedance
The LVDS interface complies with TIA/EIA 644-A standard. See, TIA/EIA STANDARD 644-A,
“Electrical Characteristics of Low Voltage Differential Signaling (LVDS) Interface Circuits” for details.
4.5
I/O AC Parameters
This section includes the AC parameters of the following I/O types:
General Purpose I/O (GPIO)
Double Data Rate 3 I/O (DDR3) for DDR2/LVDDR2, LPDDR2 and DDR3 modes
Low Voltage I/O (LVIO)
Ultra High Voltage I/O (UHVIO)
LVDS I/O
The load circuit and output transition time waveforms are shown in Figure 5 and Figure 6.
Figure 5. Load Circuit for Output
Figure 6. Output Transition Time Waveform
Table 19. UHVIO Output Buffer Impedance
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
OVDD
1.95 V
OVDD
3.0 V
OVDD
1.875 V
OVDD
3.3 V
OVDD
1.65 V
OVDD
3.6 V
Output Driver
Impedance
Rpu
Low Drive Strength, Ztl = 150
Ω
Medium Drive Strength, Ztl = 75
Ω
High Drive Strength, Ztl = 50
Ω
98
49
32
114
57
38
124
62
41
135
67
45
198
99
66
206
103
69
Ω
Output Driver
Impedance
Rpd
Low Drive Strength, Ztl = 150
Ω
Medium Drive Strength, Ztl = 75
Ω
High Drive Strength, Ztl = 50
Ω
97
49
32
118
59
40
126
63
42
154
77
51
179
89
60
217
109
72
Ω
Test Point
From Output
Under Test
CL
CL includes package, probe and fixture capacitance
0V
OVDD
20%
80%
20%
tr
tf
Output (at pad)
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