i.MX25 Applications Processor for Automotive Products, Rev. 10
28
Freescale Semiconductor
Output pad dI/dt3 (max. drive)
tdit
3.0–3.6 V
1.65–1.95 V
25 pF
50 pF
25 pF
50 pF
15
16
7
36
38
21
22
76
80
56
58
mA
/ns
Output pad dI/
dt3 (high drive)
tdit
3.0–3.6 V
1.65–1.95 V
25 pF
50 pF
25 pF
50 pF
8
9
5
20
21
14
15
45
47
38
40
Output pad dI/
dt3 (standard
drive)
tdit
3.0–3.6 V
1.65–1.95 V
25 pF
50 pF
25 pF
50 pF
4
2
10
7
22
23
18
19
Input pad propagation delay
without hysteresis, 50%–50%4
tpi
—
1.6 pF
0.82/0.47
0.74/1
1.1/0.76
1.1/1.5
1.6/1.04
1.75/2.16
ns
Input pad propagation delay with
tpi
—
1.6 pF
1.1/1.3
1.75/1.63
1.43/1.6
2.67/2.22
2/2
2.92/3
Input pad propagation delay
without hysteresis, 40%–60%
4tpi
—
1.6 pF
1.62/1.28
1.82/1.55
1.9/1.56
2.28/1.87
2.38/1.82
2.95/2.54
Input pad propagation delay with
tpi
—
1.6 pF
1.88/2.1
2.4/2.6
2.2/2.4
3/3.07
2.7/2.75
3.77/3.71
Input pad transition times without
trfi
—
1.6 pF
0.16/0.12
0.23/0.18
0.33/0.29
Input pad transition times with
trfi
1.6 pF
0.16/0.13
0.22/0.18
0.33/0.29
Maximum input transition times5
trm
—
25
ns
1 Maximum condition for tpr, tpo, and tpv: wcs model, 1.1 V, I/O 3.0 V (3.0–3.6 V range) or 1.65 V (1.65–1.95 V range), and 105
°C. Minimum condition for tpr, tpo, and tpv: bcs model, 1.3 V, I/O 3.6 V (3.0–3.6 V range) or 1.95 V (1.65–1.95 V range), and
–40 °C. Input transition time from core is 1 ns (20%–80%).
2 Minimum condition for tps: wcs model, 1.1 V, I/O 3.0 V (3.0–3.6 V range) or 1.65 V (1.65–1.95 V range), and 105 °C. tps is
measured between VIL to VIH for rising edge and between VIH to VIL for falling edge.
3 Maximum condition for tdit: bcs model, 1.3 V, I/O 3.6 V (3.0–3.6 V range) or 1.95 V (1.65–1.95 V range), and –40 °C.
4 Maximum condition for tpi and trfi: wcs model, 1.1 V, I/O 3.0 V (3.0–3.6 V range) or 1.65 V (1.65–1.95 V range), and 105 °C.
Minimum condition for tpi and trfi: bcs model, 1.3 V, I/O 3.6 V or 1.95 V (1.65–1.95 V range), and –40 °C. Input transition time
from pad is 5 ns (20%–80%).
5 Hysteresis mode is recommended for input with transition time greater than 25 ns.
Table 21. Slow I/O AC Parameters (continued)
Parameter
Symbol
Test Voltage
Test
Capacitance
Min.
Rise/Fall
Typ.
Rise/Fall
Max.
Rise/Fall
Units