Technical data

Electrical Characteristics
MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3
Freescale Semiconductor 19
4.3.3 Clock Amplifier Module (CAMP) Electrical Characteristics
This section outlines the Clock Amplifier Module (CAMP) specific electrical characteristics. Table 17
shows clock amplifier electrical characteristics.
Table 14. 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 15. 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
Table 16. AC Electrical Characteristics of DDR I/O
ID Parameter Symbol
Test
Condition
Min Typ Max Units
PA1 Output Transition Times (DDR Drive)
1
1
Use of DDR Drive can result in excessive overshoot and ringing.
tpr 25 pF
50 pF
0.51
0.97
0.82
1.58
1.28
2.46
ns
Output Transition Times (Max Drive) tpr 25 pF
50 pF
0.67
1.29
1.08
2.1
1.69
3.27
ns
Output Transition Times (High Drive) tpr 25 pF
50 pF
.99
1.93
1.61
3.13
2.51
4.89
ns
Output Transition Times (Std Drive) tpr 25 pF
50 pF
1.96
3.82
3.19
6.24
4.99
9.73
ns