MCIMX25_1 Datasheet, PDF (26/132 Pages) Freescale Semiconductor, Inc – i.MX25 Applications Processor for Consumer and Industrial Products

Table 17. Slow I/O AC Parameters (continued)
Parameter
Symbol
Test Voltage
Test
Capacitance
Min.
Rise/Fall
Output pad dI/dt (max. drive) tdit
Output pad dI/dt (high drive) tdit
Output pad dI/dt (standard
tdit
drive)
Input pad propagation delay tpi
without hysteresis,
50%–50%
Input pad propagation delay tpi
with hysteresis, 50%–50%
Input pad propagation delay tpi
without hysteresis,
40%–60%
Input pad propagation delay tpi
with hysteresis, 40%–60%
Input pad transition times
trfi
without hysteresis
Input pad transition times
trfi
with hysteresis
Maximum input transition
trm
times
3.0–3.6 V
3.0–3.6 V
1.65–1.95 V
1.65–1.95 V
3.0–3.6 V
3.0–3.6 V
1.65–1.95 V
1.65–1.95 V
3.0–3.6 V
3.0–3.6 V
1.65–1.95 V
1.65–1.95 V
—
—
—
—
—
—
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
1.6 pF
1.6 pF
1.6 pF
1.6 pF
1.6 pF
1.6 pF
—
15
16
7
7
8
9
5
5
4
4
2
2
0.82/0.47
0.74/1
1.1/1.3
1.75/1.63
1.62/1.28
1.82/1.55
1.88/2.1
2.4/2.6
0.16/0.12
0.16/0.13
—
Typ.
Rise/Fall
36
38
21
22
20
21
14
15
10
10
7
7
1.1/0.76
1.1/1.5
1.43/1.6
2.67/2.22
1.9/1.56
2.28/1.87
2.2/2.4
3/3.07
0.23/0.18
0.22/0.18
—
Max.
Rise/Fall
Units Notes
76
mA 3
80
/ns
56
58
45
47
38
40
22
23
18
19
1.6/1.04 ns
4
1.75/2.16
2/2
2.92/3
2.38/1.82
2.95/2.54
2.7/2.75
3.77/3.71
0.33/0.29
0.33/0.29
25
ns
5
Note:
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.
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 1
26
Freescale Semiconductor