
i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 10
Freescale Semiconductor
25
Table 17. AC Electrical Characteristics of GPIO Pins in Slow Slew Rate Mode
[NVCC = 1.65 V–1.95 V]
Parameter
Symbol
Test Condition
Min.
Rise/Fall
Typ.
Max.
Rise/Fall
Units
Duty cycle
Fduty
—
40
—
60
%
Output pin slew rate (max. drive)
tps
25 pF
50 pF
0.30/0.42
0.20/0.29
0.54/0.73
0.35/0.50
0.91/1.20
0.60/0.80
V/ns
Output pin slew rate (high drive)
tps
25 pF
50 pF
0.19/0.28
0.12/0.18
0.34/0.49
0.58/0/79
0.36/0.49
V/ns
Output pin slew rate (standard drive)
tps
25 pF
50 pF
0.12/0.18
0.07/0.11
0.20/0.30
0.11/0.17
0.34/0.47
0.20/0.27
V/ns
Output pin di/dt (max. drive)
tdit
25 pF
50 pF
7
21
22
56
58
mA/ns
Output pin di/dt (high drive)
tdit
25 pF
50 pF
5
14
15
38
40
mA/ns
Output pin di/dt (standard
drive)
tdit
25 pF
50 pF
2
7
18
19
mA/ns
Table 18. AC Electrical Characteristics of GPIO Pins in Fast Slew Rate Mode for
[NVCC = 3.0 V–3.6 V]
Parameter
Symbol
Test Condition
Min.
rise/fall
Typ.
Max.
Rise/Fall
Units
Duty cycle
Fduty
—
40
—
60
%
Output pin slew rate (max. drive)
tps
25 pF
50 pF
0.96/1.40
0.54/0.83
1.54/2.10
0.85/1.24
2.30/3.00
1.26/1.70
V/ns
Output pin slew rate (high drive)
tps
25 pF
50 pF
0.76/1.10
0.41/0.64
1.19/1.71
0.63/0.95
1.78/2.39
0.95/1.30
V/ns
Output pin slew rate (standard drive)
tps
25 pF
50 pF
0.52/0.78
0.28/0.44
0.80/1.19
0.43/0.64
1.20/1.60
0.63/0.87
V/ns
Output pin di/dt (max. drive)
tdit
25 pF
50 pF
46
49
108
113
250
262
mA/ns
Output pin di/dt (high drive)
tdit
25 pF
50 pF
35
37
82
86
197
207
mA/ns
Output pin di/dt (standard
drive)
tdit
25 pF
50 pF
22
23
52
55
116
121
mA/ns